diff --git a/proto/interchain_security/ccv/consumer/v1/consumer.proto b/proto/interchain_security/ccv/consumer/v1/consumer.proto
index 082315aff2..170c146cfd 100644
--- a/proto/interchain_security/ccv/consumer/v1/consumer.proto
+++ b/proto/interchain_security/ccv/consumer/v1/consumer.proto
@@ -9,6 +9,7 @@ import "google/protobuf/any.proto";
 import "gogoproto/gogo.proto";
 import "cosmos_proto/cosmos.proto";
 import "google/protobuf/duration.proto";
+import "google/protobuf/timestamp.proto";
 
 // Params defines the parameters for CCV consumer module
 message Params {
@@ -68,3 +69,8 @@ message CrossChainValidator {
   ];
 }
 
+// MaturingVSCPacket contains the maturing time of a received VSCPacket
+message MaturingVSCPacket {
+  uint64 vscId = 1;
+  google.protobuf.Timestamp maturity_time = 2 [(gogoproto.stdtime) = true, (gogoproto.nullable) = false];
+}
diff --git a/proto/interchain_security/ccv/consumer/v1/genesis.proto b/proto/interchain_security/ccv/consumer/v1/genesis.proto
index 3d5a69fdbd..6adbc79f54 100644
--- a/proto/interchain_security/ccv/consumer/v1/genesis.proto
+++ b/proto/interchain_security/ccv/consumer/v1/genesis.proto
@@ -23,7 +23,7 @@ message GenesisState {
   // ProviderConsensusState filled in on new chain, nil on restart.
   ibc.lightclients.tendermint.v1.ConsensusState provider_consensus_state = 6;
   // MaturingPackets nil on new chain, filled in on restart.
-  repeated MaturingVSCPacket maturing_packets = 7
+  repeated interchain_security.ccv.consumer.v1.MaturingVSCPacket maturing_packets = 7
       [ (gogoproto.nullable) = false ];
   // InitialValset filled in on new chain and on restart.
   repeated .tendermint.abci.ValidatorUpdate initial_val_set = 8
@@ -42,13 +42,6 @@ message GenesisState {
   [ (gogoproto.nullable) = false ];
 }
 
-// MaturingVSCPacket defines the genesis information for the
-// unbonding VSC packet
-message MaturingVSCPacket {
-  uint64 vscId = 1;
-  uint64 maturity_time = 2;
-}
-
 // HeightValsetUpdateID defines the genesis information for the mapping 
 // of each block height to a valset update id
 message HeightToValsetUpdateID {
diff --git a/tests/e2e/valset_update.go b/tests/e2e/valset_update.go
index 4b250eaaaa..d56b5f0f66 100644
--- a/tests/e2e/valset_update.go
+++ b/tests/e2e/valset_update.go
@@ -99,6 +99,8 @@ func (suite *CCVTestSuite) TestQueueAndSendVSCMaturedPackets() {
 	suite.Require().NotNil(ack, "OnRecvVSCPacket did not return ack")
 	suite.Require().True(ack.Success(), "OnRecvVSCPacket did not return a Success Acknowledgment")
 
+	packetMaturities := consumerKeeper.GetAllPacketMaturityTimes(suite.consumerChain.GetContext())
+
 	// increase time such that first two packets are unbonded but third is not.
 	unbondingPeriod := consumerKeeper.GetUnbondingPeriod(suite.consumerChain.GetContext())
 	// increase time
@@ -106,14 +108,31 @@ func (suite *CCVTestSuite) TestQueueAndSendVSCMaturedPackets() {
 
 	// ensure first two packets are unbonded and VSCMatured packets are queued
 	// unbonded time is deleted
-	time1 := consumerKeeper.GetPacketMaturityTime(suite.consumerChain.GetContext(), 1)
-	time2 := consumerKeeper.GetPacketMaturityTime(suite.consumerChain.GetContext(), 2)
-	suite.Require().Equal(uint64(0), time1, "maturity time not deleted for mature packet 1")
-	suite.Require().Equal(uint64(0), time2, "maturity time not deleted for mature packet 2")
-
+	suite.Require().False(
+		consumerKeeper.PacketMaturityTimeExists(
+			suite.consumerChain.GetContext(),
+			packetMaturities[0].VscId,
+			packetMaturities[0].MaturityTime,
+		),
+		"maturity time not deleted for mature packet 1",
+	)
+	suite.Require().False(
+		consumerKeeper.PacketMaturityTimeExists(
+			suite.consumerChain.GetContext(),
+			packetMaturities[1].VscId,
+			packetMaturities[1].MaturityTime,
+		),
+		"maturity time not deleted for mature packet 2",
+	)
 	// ensure that third packet did not get unbonded and is still in store
-	time3 := consumerKeeper.GetPacketMaturityTime(suite.consumerChain.GetContext(), 3)
-	suite.Require().True(time3 > uint64(suite.consumerChain.GetContext().BlockTime().UnixNano()), "maturity time for packet 3 is not after current time")
+	suite.Require().True(
+		consumerKeeper.PacketMaturityTimeExists(
+			suite.consumerChain.GetContext(),
+			packetMaturities[2].VscId,
+			packetMaturities[2].MaturityTime,
+		),
+		"maturity time for packet 3 is not after current time",
+	)
 
 	// check that the packets are committed in state
 	commitments := suite.consumerApp.GetIBCKeeper().ChannelKeeper.GetAllPacketCommitmentsAtChannel(
diff --git a/x/ccv/consumer/keeper/genesis_test.go b/x/ccv/consumer/keeper/genesis_test.go
index 6d25b724e9..66e4638d3a 100644
--- a/x/ccv/consumer/keeper/genesis_test.go
+++ b/x/ccv/consumer/keeper/genesis_test.go
@@ -64,7 +64,7 @@ func TestInitGenesis(t *testing.T) {
 	matPackets := []consumertypes.MaturingVSCPacket{
 		{
 			VscId:        1,
-			MaturityTime: uint64(time.Now().UnixNano()),
+			MaturityTime: time.Now().UTC(),
 		},
 	}
 	pendingDataPackets := ccv.ConsumerPacketDataList{
@@ -185,7 +185,7 @@ func TestInitGenesis(t *testing.T) {
 				require.True(t, ok)
 				require.Equal(t, provChannelID, gotChannelID)
 
-				require.Equal(t, vscID, ck.GetPacketMaturityTime(ctx, vscID))
+				require.True(t, ck.PacketMaturityTimeExists(ctx, matPackets[0].VscId, matPackets[0].MaturityTime))
 				require.Equal(t, pendingDataPackets, ck.GetPendingPackets(ctx))
 
 				require.Equal(t, gs.OutstandingDowntimeSlashing, ck.GetAllOutstandingDowntimes(ctx))
@@ -236,7 +236,7 @@ func TestExportGenesis(t *testing.T) {
 	matPackets := []consumertypes.MaturingVSCPacket{
 		{
 			VscId:        1,
-			MaturityTime: uint64(time.Now().UnixNano()),
+			MaturityTime: time.Now().UTC(),
 		},
 	}
 
diff --git a/x/ccv/consumer/keeper/keeper.go b/x/ccv/consumer/keeper/keeper.go
index 15441c228d..f4c6e720bc 100644
--- a/x/ccv/consumer/keeper/keeper.go
+++ b/x/ccv/consumer/keeper/keeper.go
@@ -3,6 +3,7 @@ package keeper
 import (
 	"encoding/binary"
 	"fmt"
+	"time"
 
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
@@ -206,76 +207,81 @@ func (k Keeper) DeletePendingChanges(ctx sdk.Context) {
 	store.Delete(types.PendingChangesKey())
 }
 
-// GetElapsedPacketMaturityTimes returns a slice of already elapsed PacketMaturityTimes, sorted by vscIDs,
-// i.e., the slice contains the IDs of the matured VSCPackets
-func (k Keeper) GetElapsedPacketMaturityTimes(ctx sdk.Context) (maturingVSCPacket []consumertypes.MaturingVSCPacket) {
-	currentTime := uint64(ctx.BlockTime().UnixNano())
+// GetElapsedPacketMaturityTimes returns a slice of already elapsed PacketMaturityTimes, sorted by maturity times,
+// i.e., the slice contains the IDs of the matured VSCPackets.
+func (k Keeper) GetElapsedPacketMaturityTimes(ctx sdk.Context) (maturingVSCPackets []consumertypes.MaturingVSCPacket) {
 	store := ctx.KVStore(k.storeKey)
 	iterator := sdk.KVStorePrefixIterator(store, []byte{types.PacketMaturityTimeBytePrefix})
 
 	defer iterator.Close()
 
 	for ; iterator.Valid(); iterator.Next() {
-		vscId := binary.BigEndian.Uint64(iterator.Key()[1:])
-		maturityTime := binary.BigEndian.Uint64(iterator.Value())
+		var maturingVSCPacket consumertypes.MaturingVSCPacket
+		if err := maturingVSCPacket.Unmarshal(iterator.Value()); err != nil {
+			panic(fmt.Errorf("failed to unmarshal MaturingVSCPacket: %w", err))
+		}
 
-		// If the maturity time is after the current time, then stop the iteration;
-		// TODO: the iteration over PacketMaturityTimes should be over maturity times,
-		// see https://github.com/cosmos/interchain-security/issues/598
-		if currentTime < maturityTime {
+		// If the current block time is before maturity time then stop the iteration.
+		// This is possible since the iteration over PacketMaturityTimes is in order
+		// of maturity times
+		if ctx.BlockTime().Before(maturingVSCPacket.MaturityTime) {
 			break
 		}
 
-		maturingVSCPacket = append(maturingVSCPacket, consumertypes.MaturingVSCPacket{
-			VscId:        vscId,
-			MaturityTime: maturityTime,
-		})
+		maturingVSCPackets = append(maturingVSCPackets, maturingVSCPacket)
 	}
-	return maturingVSCPacket
+	return maturingVSCPackets
 }
 
-// GetAllPacketMaturityTimes returns a slice of all PacketMaturityTimes, sorted by vscIDs.
-func (k Keeper) GetAllPacketMaturityTimes(ctx sdk.Context) (maturingVSCPacket []consumertypes.MaturingVSCPacket) {
+// GetAllPacketMaturityTimes returns a slice of all PacketMaturityTimes, sorted by maturity times.
+//
+// Note that PacketMaturityTimes are stored under keys with the following format:
+// PacketMaturityTimeBytePrefix | maturityTime.UnixNano() | vscID
+// Thus, the returned array is in ascending order of maturityTimes.
+// If two entries have the same maturityTime, then they are ordered by vscID.
+func (k Keeper) GetAllPacketMaturityTimes(ctx sdk.Context) (maturingVSCPackets []consumertypes.MaturingVSCPacket) {
 	store := ctx.KVStore(k.storeKey)
 	iterator := sdk.KVStorePrefixIterator(store, []byte{types.PacketMaturityTimeBytePrefix})
 
 	defer iterator.Close()
 	for ; iterator.Valid(); iterator.Next() {
-		vscId := binary.BigEndian.Uint64(iterator.Key()[1:])
-		maturityTime := binary.BigEndian.Uint64(iterator.Value())
+		var maturingVSCPacket consumertypes.MaturingVSCPacket
+		if err := maturingVSCPacket.Unmarshal(iterator.Value()); err != nil {
+			panic(fmt.Errorf("failed to unmarshal MaturingVSCPacket: %w", err))
+		}
 
-		maturingVSCPacket = append(maturingVSCPacket, consumertypes.MaturingVSCPacket{
-			VscId:        vscId,
-			MaturityTime: maturityTime,
-		})
+		maturingVSCPackets = append(maturingVSCPackets, maturingVSCPacket)
 	}
-	return maturingVSCPacket
+	return maturingVSCPackets
 }
 
 // SetPacketMaturityTime sets the maturity time for a given received VSC packet id
-func (k Keeper) SetPacketMaturityTime(ctx sdk.Context, vscId, maturityTime uint64) {
+func (k Keeper) SetPacketMaturityTime(ctx sdk.Context, vscId uint64, maturityTime time.Time) {
 	store := ctx.KVStore(k.storeKey)
-	timeBytes := make([]byte, 8)
-	binary.BigEndian.PutUint64(timeBytes, maturityTime)
-	store.Set(types.PacketMaturityTimeKey(vscId), timeBytes)
+	maturingVSCPacket := consumertypes.MaturingVSCPacket{
+		VscId:        vscId,
+		MaturityTime: maturityTime,
+	}
+	bz, err := maturingVSCPacket.Marshal()
+	if err != nil {
+		panic(fmt.Errorf("failed to marshal MaturingVSCPacket: %w", err))
+	}
+	store.Set(types.PacketMaturityTimeKey(vscId, maturityTime), bz)
 }
 
-// GetPacketMaturityTime gets the maturity time for a given received VSC packet id
-func (k Keeper) GetPacketMaturityTime(ctx sdk.Context, vscId uint64) uint64 {
+// PacketMaturityExists checks whether the packet maturity time for a given vscId and maturityTime exists.
+//
+// Note: this method is only used in testing.
+func (k Keeper) PacketMaturityTimeExists(ctx sdk.Context, vscId uint64, maturityTime time.Time) bool {
 	store := ctx.KVStore(k.storeKey)
-	bz := store.Get(types.PacketMaturityTimeKey(vscId))
-	if bz == nil {
-		return 0
-	}
-	return binary.BigEndian.Uint64(bz)
+	bz := store.Get(types.PacketMaturityTimeKey(vscId, maturityTime))
+	return bz != nil
 }
 
-// DeletePacketMaturityTimes deletes the packet maturity time for given received VSC packet ids
-func (k Keeper) DeletePacketMaturityTimes(ctx sdk.Context, vscIds ...uint64) {
+// DeletePacketMaturityTimes deletes the packet maturity time for a given vscId and maturityTime
+func (k Keeper) DeletePacketMaturityTimes(ctx sdk.Context, vscId uint64, maturityTime time.Time) {
 	store := ctx.KVStore(k.storeKey)
-	for _, vscId := range vscIds {
-		store.Delete(types.PacketMaturityTimeKey(vscId))
-	}
+	store.Delete(types.PacketMaturityTimeKey(vscId, maturityTime))
 }
 
 // VerifyProviderChain verifies that the chain trying to connect on the channel handshake
diff --git a/x/ccv/consumer/keeper/keeper_test.go b/x/ccv/consumer/keeper/keeper_test.go
index aae0d509fc..ab582c1ac0 100644
--- a/x/ccv/consumer/keeper/keeper_test.go
+++ b/x/ccv/consumer/keeper/keeper_test.go
@@ -90,60 +90,51 @@ func TestPacketMaturityTime(t *testing.T) {
 	defer ctrl.Finish()
 
 	now := time.Now().UTC()
-	nsNow := uint64(now.UnixNano())
 	packets := []types.MaturingVSCPacket{
 		{
 			VscId:        2,
-			MaturityTime: nsNow,
+			MaturityTime: now,
 		},
 		{
 			VscId:        1,
-			MaturityTime: nsNow - 15,
+			MaturityTime: now.Add(-time.Hour),
 		},
 		{
 			VscId:        5,
-			MaturityTime: nsNow - 30,
+			MaturityTime: now.Add(-2 * time.Hour),
 		},
 		{
 			VscId:        6,
-			MaturityTime: nsNow + 10,
+			MaturityTime: now.Add(time.Hour),
 		},
 	}
-	expectedGetAllOrder := packets
-	// sorting by VscId
-	sort.Slice(expectedGetAllOrder, func(i, j int) bool {
-		return expectedGetAllOrder[i].VscId < expectedGetAllOrder[j].VscId
-	})
-	expectedGetElapsedOrder := []types.MaturingVSCPacket{}
-	for _, packet := range packets {
-		// only packets with MaturityTime <= nsNow
-		if packet.MaturityTime <= nsNow {
-			expectedGetElapsedOrder = append(expectedGetElapsedOrder, packet)
-		}
-	}
-	// sorting by VscId
-	sort.Slice(expectedGetElapsedOrder, func(i, j int) bool {
-		return expectedGetElapsedOrder[i].VscId < expectedGetElapsedOrder[j].VscId
-	})
+	// sort by MaturityTime and not by VscId
+	expectedGetAllOrder := []types.MaturingVSCPacket{packets[2], packets[1], packets[0], packets[3]}
+	// only packets with MaturityTime before or equal to now
+	expectedGetElapsedOrder := []types.MaturingVSCPacket{packets[2], packets[1], packets[0]}
 
+	// test SetPacketMaturityTime
 	for _, packet := range packets {
 		ck.SetPacketMaturityTime(ctx, packet.VscId, packet.MaturityTime)
 	}
 
+	// test PacketMaturityTimeExists
 	for _, packet := range packets {
-		require.Equal(t, packet.MaturityTime, ck.GetPacketMaturityTime(ctx, packet.VscId))
+		require.True(t, ck.PacketMaturityTimeExists(ctx, packet.VscId, packet.MaturityTime))
 	}
 
+	// test GetAllPacketMaturityTimes
 	maturingVSCPackets := ck.GetAllPacketMaturityTimes(ctx)
 	require.Len(t, maturingVSCPackets, len(packets))
 	require.Equal(t, expectedGetAllOrder, maturingVSCPackets)
 
+	// test GetElapsedPacketMaturityTimes
 	elapsedMaturingVSCPackets := ck.GetElapsedPacketMaturityTimes(ctx.WithBlockTime(now))
 	require.Equal(t, expectedGetElapsedOrder, elapsedMaturingVSCPackets)
 
-	ck.DeletePacketMaturityTimes(ctx, 6)
-	require.Equal(t, uint64(0), ck.GetPacketMaturityTime(ctx, 3))
-	require.Equal(t, uint64(0), ck.GetPacketMaturityTime(ctx, 6))
+	// test DeletePacketMaturityTimes
+	ck.DeletePacketMaturityTimes(ctx, packets[0].VscId, packets[0].MaturityTime)
+	require.False(t, ck.PacketMaturityTimeExists(ctx, packets[0].VscId, packets[0].MaturityTime))
 }
 
 // TestCrossChainValidator tests the getter, setter, and deletion method for cross chain validator records
diff --git a/x/ccv/consumer/keeper/relay.go b/x/ccv/consumer/keeper/relay.go
index 1f3cea38c4..de1a526c81 100644
--- a/x/ccv/consumer/keeper/relay.go
+++ b/x/ccv/consumer/keeper/relay.go
@@ -64,7 +64,7 @@ func (k Keeper) OnRecvVSCPacket(ctx sdk.Context, packet channeltypes.Packet, new
 
 	// Save maturity time and packet
 	maturityTime := ctx.BlockTime().Add(k.GetUnbondingPeriod(ctx))
-	k.SetPacketMaturityTime(ctx, newChanges.ValsetUpdateId, uint64(maturityTime.UnixNano()))
+	k.SetPacketMaturityTime(ctx, newChanges.ValsetUpdateId, maturityTime)
 
 	// set height to VSC id mapping
 	k.SetHeightValsetUpdateID(ctx, uint64(ctx.BlockHeight())+1, newChanges.ValsetUpdateId)
@@ -85,24 +85,22 @@ func (k Keeper) OnRecvVSCPacket(ctx sdk.Context, packet channeltypes.Packet, new
 // operations that resulted in validator updates included in that VSC have matured on
 // the consumer chain.
 func (k Keeper) QueueVSCMaturedPackets(ctx sdk.Context) {
-	currentTime := uint64(ctx.BlockTime().UnixNano())
-
 	for _, maturityTime := range k.GetElapsedPacketMaturityTimes(ctx) {
-		if currentTime < maturityTime.MaturityTime {
-			panic(fmt.Errorf("maturity time %d is greater than current time %d", maturityTime.MaturityTime, currentTime))
+		if ctx.BlockTime().Before(maturityTime.MaturityTime) {
+			panic(fmt.Errorf("maturity time %s is after than current time %s", maturityTime.MaturityTime, ctx.BlockTime()))
 		}
 		// construct validator set change packet data
 		vscPacket := ccv.NewVSCMaturedPacketData(maturityTime.VscId)
 
-		// append VSCMatured packet to pending packets
-		// sending packets is attempted each EndBlock
-		// unsent packets remain in the queue until sent
+		// Append VSCMatured packet to pending packets.
+		// Sending packets is attempted each EndBlock.
+		// Unsent packets remain in the queue until sent.
 		k.AppendPendingPacket(ctx, ccv.ConsumerPacketData{
 			Type: ccv.VscMaturedPacket,
 			Data: &ccv.ConsumerPacketData_VscMaturedPacketData{VscMaturedPacketData: vscPacket},
 		})
 
-		k.DeletePacketMaturityTimes(ctx, uint64(maturityTime.VscId))
+		k.DeletePacketMaturityTimes(ctx, maturityTime.VscId, maturityTime.MaturityTime)
 
 		ctx.EventManager().EmitEvent(
 			sdk.NewEvent(
@@ -111,7 +109,7 @@ func (k Keeper) QueueVSCMaturedPackets(ctx sdk.Context) {
 				sdk.NewAttribute(ccv.AttributeChainID, ctx.ChainID()),
 				sdk.NewAttribute(ccv.AttributeConsumerHeight, strconv.Itoa(int(ctx.BlockHeight()))),
 				sdk.NewAttribute(ccv.AttributeValSetUpdateID, strconv.Itoa(int(maturityTime.VscId))),
-				sdk.NewAttribute(ccv.AttributeTimestamp, strconv.Itoa(int(currentTime))),
+				sdk.NewAttribute(ccv.AttributeTimestamp, ctx.BlockTime().String()),
 			),
 		)
 	}
diff --git a/x/ccv/consumer/keeper/relay_test.go b/x/ccv/consumer/keeper/relay_test.go
index 218d8c4d6a..86b46e37f7 100644
--- a/x/ccv/consumer/keeper/relay_test.go
+++ b/x/ccv/consumer/keeper/relay_test.go
@@ -143,9 +143,12 @@ func TestOnRecvVSCPacket(t *testing.T) {
 		})
 		require.Equal(t, tc.expectedPendingChanges, *actualPendingChanges, "pending changes not equal to expected changes after successful packet receive. case: %s", tc.name)
 
-		expectedTime := uint64(ctx.BlockTime().Add(consumerKeeper.GetUnbondingPeriod(ctx)).UnixNano())
-		maturityTime := consumerKeeper.GetPacketMaturityTime(ctx, tc.newChanges.ValsetUpdateId)
-		require.Equal(t, expectedTime, maturityTime, "packet maturity time has unexpected value for case: %s", tc.name)
+		expectedTime := ctx.BlockTime().Add(consumerKeeper.GetUnbondingPeriod(ctx))
+		require.True(
+			t,
+			consumerKeeper.PacketMaturityTimeExists(ctx, tc.newChanges.ValsetUpdateId, expectedTime),
+			"no packet maturity time for case: %s", tc.name,
+		)
 	}
 }
 
diff --git a/x/ccv/consumer/types/consumer.pb.go b/x/ccv/consumer/types/consumer.pb.go
index 2d2903e9d6..5d20bfce95 100644
--- a/x/ccv/consumer/types/consumer.pb.go
+++ b/x/ccv/consumer/types/consumer.pb.go
@@ -12,6 +12,7 @@ import (
 	github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
 	_ "github.com/regen-network/cosmos-proto"
 	_ "google.golang.org/protobuf/types/known/durationpb"
+	_ "google.golang.org/protobuf/types/known/timestamppb"
 	io "io"
 	math "math"
 	math_bits "math/bits"
@@ -268,10 +269,64 @@ func (m *CrossChainValidator) GetPubkey() *types.Any {
 	return nil
 }
 
+// MaturingVSCPacket contains the maturing time of a received VSCPacket
+type MaturingVSCPacket struct {
+	VscId        uint64    `protobuf:"varint,1,opt,name=vscId,proto3" json:"vscId,omitempty"`
+	MaturityTime time.Time `protobuf:"bytes,2,opt,name=maturity_time,json=maturityTime,proto3,stdtime" json:"maturity_time"`
+}
+
+func (m *MaturingVSCPacket) Reset()         { *m = MaturingVSCPacket{} }
+func (m *MaturingVSCPacket) String() string { return proto.CompactTextString(m) }
+func (*MaturingVSCPacket) ProtoMessage()    {}
+func (*MaturingVSCPacket) Descriptor() ([]byte, []int) {
+	return fileDescriptor_5b27a82b276e7f93, []int{3}
+}
+func (m *MaturingVSCPacket) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *MaturingVSCPacket) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	if deterministic {
+		return xxx_messageInfo_MaturingVSCPacket.Marshal(b, m, deterministic)
+	} else {
+		b = b[:cap(b)]
+		n, err := m.MarshalToSizedBuffer(b)
+		if err != nil {
+			return nil, err
+		}
+		return b[:n], nil
+	}
+}
+func (m *MaturingVSCPacket) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_MaturingVSCPacket.Merge(m, src)
+}
+func (m *MaturingVSCPacket) XXX_Size() int {
+	return m.Size()
+}
+func (m *MaturingVSCPacket) XXX_DiscardUnknown() {
+	xxx_messageInfo_MaturingVSCPacket.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_MaturingVSCPacket proto.InternalMessageInfo
+
+func (m *MaturingVSCPacket) GetVscId() uint64 {
+	if m != nil {
+		return m.VscId
+	}
+	return 0
+}
+
+func (m *MaturingVSCPacket) GetMaturityTime() time.Time {
+	if m != nil {
+		return m.MaturityTime
+	}
+	return time.Time{}
+}
+
 func init() {
 	proto.RegisterType((*Params)(nil), "interchain_security.ccv.consumer.v1.Params")
 	proto.RegisterType((*LastTransmissionBlockHeight)(nil), "interchain_security.ccv.consumer.v1.LastTransmissionBlockHeight")
 	proto.RegisterType((*CrossChainValidator)(nil), "interchain_security.ccv.consumer.v1.CrossChainValidator")
+	proto.RegisterType((*MaturingVSCPacket)(nil), "interchain_security.ccv.consumer.v1.MaturingVSCPacket")
 }
 
 func init() {
@@ -279,48 +334,52 @@ func init() {
 }
 
 var fileDescriptor_5b27a82b276e7f93 = []byte{
-	// 641 bytes of a gzipped FileDescriptorProto
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+	0x76, 0x39, 0x05, 0x00, 0x00,
 }
 
 func (m *Params) Marshal() (dAtA []byte, err error) {
@@ -486,6 +545,42 @@ func (m *CrossChainValidator) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	return len(dAtA) - i, nil
 }
 
+func (m *MaturingVSCPacket) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *MaturingVSCPacket) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *MaturingVSCPacket) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	n5, err5 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.MaturityTime, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.MaturityTime):])
+	if err5 != nil {
+		return 0, err5
+	}
+	i -= n5
+	i = encodeVarintConsumer(dAtA, i, uint64(n5))
+	i--
+	dAtA[i] = 0x12
+	if m.VscId != 0 {
+		i = encodeVarintConsumer(dAtA, i, uint64(m.VscId))
+		i--
+		dAtA[i] = 0x8
+	}
+	return len(dAtA) - i, nil
+}
+
 func encodeVarintConsumer(dAtA []byte, offset int, v uint64) int {
 	offset -= sovConsumer(v)
 	base := offset
@@ -565,6 +660,20 @@ func (m *CrossChainValidator) Size() (n int) {
 	return n
 }
 
+func (m *MaturingVSCPacket) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if m.VscId != 0 {
+		n += 1 + sovConsumer(uint64(m.VscId))
+	}
+	l = github_com_gogo_protobuf_types.SizeOfStdTime(m.MaturityTime)
+	n += 1 + l + sovConsumer(uint64(l))
+	return n
+}
+
 func sovConsumer(x uint64) (n int) {
 	return (math_bits.Len64(x|1) + 6) / 7
 }
@@ -1082,6 +1191,108 @@ func (m *CrossChainValidator) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *MaturingVSCPacket) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowConsumer
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: MaturingVSCPacket: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: MaturingVSCPacket: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field VscId", wireType)
+			}
+			m.VscId = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowConsumer
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.VscId |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field MaturityTime", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowConsumer
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthConsumer
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthConsumer
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := github_com_gogo_protobuf_types.StdTimeUnmarshal(&m.MaturityTime, dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipConsumer(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if (skippy < 0) || (iNdEx+skippy) < 0 {
+				return ErrInvalidLengthConsumer
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func skipConsumer(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0
diff --git a/x/ccv/consumer/types/genesis.go b/x/ccv/consumer/types/genesis.go
index 09b6af6f79..e94984b3f0 100644
--- a/x/ccv/consumer/types/genesis.go
+++ b/x/ccv/consumer/types/genesis.go
@@ -158,7 +158,7 @@ func (gs GenesisState) Validate() error {
 }
 
 func (mat MaturingVSCPacket) Validate() error {
-	if mat.MaturityTime == 0 {
+	if mat.MaturityTime.IsZero() {
 		return sdkerrors.Wrap(ccv.ErrInvalidVSCMaturedTime, "cannot have 0 maturity time")
 	}
 	if mat.VscId == 0 {
diff --git a/x/ccv/consumer/types/genesis.pb.go b/x/ccv/consumer/types/genesis.pb.go
index 3093e5ab1c..c72bf936b8 100644
--- a/x/ccv/consumer/types/genesis.pb.go
+++ b/x/ccv/consumer/types/genesis.pb.go
@@ -169,60 +169,6 @@ func (m *GenesisState) GetLastTransmissionBlockHeight() LastTransmissionBlockHei
 	return LastTransmissionBlockHeight{}
 }
 
-// MaturingVSCPacket defines the genesis information for the
-// unbonding VSC packet
-type MaturingVSCPacket struct {
-	VscId        uint64 `protobuf:"varint,1,opt,name=vscId,proto3" json:"vscId,omitempty"`
-	MaturityTime uint64 `protobuf:"varint,2,opt,name=maturity_time,json=maturityTime,proto3" json:"maturity_time,omitempty"`
-}
-
-func (m *MaturingVSCPacket) Reset()         { *m = MaturingVSCPacket{} }
-func (m *MaturingVSCPacket) String() string { return proto.CompactTextString(m) }
-func (*MaturingVSCPacket) ProtoMessage()    {}
-func (*MaturingVSCPacket) Descriptor() ([]byte, []int) {
-	return fileDescriptor_2db73a6057a27482, []int{1}
-}
-func (m *MaturingVSCPacket) XXX_Unmarshal(b []byte) error {
-	return m.Unmarshal(b)
-}
-func (m *MaturingVSCPacket) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	if deterministic {
-		return xxx_messageInfo_MaturingVSCPacket.Marshal(b, m, deterministic)
-	} else {
-		b = b[:cap(b)]
-		n, err := m.MarshalToSizedBuffer(b)
-		if err != nil {
-			return nil, err
-		}
-		return b[:n], nil
-	}
-}
-func (m *MaturingVSCPacket) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_MaturingVSCPacket.Merge(m, src)
-}
-func (m *MaturingVSCPacket) XXX_Size() int {
-	return m.Size()
-}
-func (m *MaturingVSCPacket) XXX_DiscardUnknown() {
-	xxx_messageInfo_MaturingVSCPacket.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_MaturingVSCPacket proto.InternalMessageInfo
-
-func (m *MaturingVSCPacket) GetVscId() uint64 {
-	if m != nil {
-		return m.VscId
-	}
-	return 0
-}
-
-func (m *MaturingVSCPacket) GetMaturityTime() uint64 {
-	if m != nil {
-		return m.MaturityTime
-	}
-	return 0
-}
-
 // HeightValsetUpdateID defines the genesis information for the mapping
 // of each block height to a valset update id
 type HeightToValsetUpdateID struct {
@@ -234,7 +180,7 @@ func (m *HeightToValsetUpdateID) Reset()         { *m = HeightToValsetUpdateID{}
 func (m *HeightToValsetUpdateID) String() string { return proto.CompactTextString(m) }
 func (*HeightToValsetUpdateID) ProtoMessage()    {}
 func (*HeightToValsetUpdateID) Descriptor() ([]byte, []int) {
-	return fileDescriptor_2db73a6057a27482, []int{2}
+	return fileDescriptor_2db73a6057a27482, []int{1}
 }
 func (m *HeightToValsetUpdateID) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -287,7 +233,7 @@ func (m *OutstandingDowntime) Reset()         { *m = OutstandingDowntime{} }
 func (m *OutstandingDowntime) String() string { return proto.CompactTextString(m) }
 func (*OutstandingDowntime) ProtoMessage()    {}
 func (*OutstandingDowntime) Descriptor() ([]byte, []int) {
-	return fileDescriptor_2db73a6057a27482, []int{3}
+	return fileDescriptor_2db73a6057a27482, []int{2}
 }
 func (m *OutstandingDowntime) XXX_Unmarshal(b []byte) error {
 	return m.Unmarshal(b)
@@ -325,7 +271,6 @@ func (m *OutstandingDowntime) GetValidatorConsensusAddress() string {
 
 func init() {
 	proto.RegisterType((*GenesisState)(nil), "interchain_security.ccv.consumer.v1.GenesisState")
-	proto.RegisterType((*MaturingVSCPacket)(nil), "interchain_security.ccv.consumer.v1.MaturingVSCPacket")
 	proto.RegisterType((*HeightToValsetUpdateID)(nil), "interchain_security.ccv.consumer.v1.HeightToValsetUpdateID")
 	proto.RegisterType((*OutstandingDowntime)(nil), "interchain_security.ccv.consumer.v1.OutstandingDowntime")
 }
@@ -335,58 +280,56 @@ func init() {
 }
 
 var fileDescriptor_2db73a6057a27482 = []byte{
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+	0xa9, 0xf3, 0x23, 0x24, 0xe4, 0xc9, 0x1c, 0xd3, 0x7e, 0x41, 0xa4, 0x1d, 0x29, 0x27, 0x10, 0x3f,
+	0x0c, 0xd9, 0x3b, 0x03, 0x8d, 0xe5, 0xf6, 0xc1, 0x06, 0xa8, 0x9a, 0x72, 0x8a, 0x97, 0x66, 0x63,
+	0x60, 0x76, 0xb0, 0x03, 0x76, 0xee, 0xdd, 0x96, 0x35, 0x85, 0xf8, 0x3e, 0x5f, 0xb0, 0x78, 0xef,
+	0x14, 0xec, 0x2e, 0xf1, 0x05, 0x3e, 0x06, 0xad, 0xbc, 0xbc, 0xa0, 0x73, 0x7f, 0x4e, 0x14, 0x04,
+	0x29, 0x11, 0xfa, 0x5d, 0xab, 0x0f, 0x7e, 0x9e, 0x42, 0xa6, 0xff, 0xb7, 0xa7, 0x1a, 0xb0, 0x7f,
+	0x72, 0x75, 0xeb, 0x58, 0xd7, 0xb7, 0x8e, 0xf5, 0xe9, 0xd6, 0xb1, 0x3e, 0xdc, 0x39, 0x95, 0xeb,
+	0x3b, 0xa7, 0xf2, 0xf1, 0xce, 0xa9, 0x9c, 0xfd, 0x1f, 0x52, 0x19, 0x65, 0x63, 0x17, 0xf3, 0xc4,
+	0xc3, 0x5c, 0x24, 0x5c, 0x78, 0xb3, 0x11, 0xfe, 0x3d, 0xfd, 0x34, 0xbc, 0x59, 0xfc, 0x38, 0xa8,
+	0x97, 0x7f, 0x5c, 0x55, 0x0f, 0xee, 0x3f, 0x9f, 0x03, 0x00, 0x00, 0xff, 0xff, 0xb4, 0x5a, 0x50,
+	0x50, 0xcb, 0x06, 0x00, 0x00,
 }
 
 func (m *GenesisState) Marshal() (dAtA []byte, err error) {
@@ -546,39 +489,6 @@ func (m *GenesisState) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	return len(dAtA) - i, nil
 }
 
-func (m *MaturingVSCPacket) Marshal() (dAtA []byte, err error) {
-	size := m.Size()
-	dAtA = make([]byte, size)
-	n, err := m.MarshalToSizedBuffer(dAtA[:size])
-	if err != nil {
-		return nil, err
-	}
-	return dAtA[:n], nil
-}
-
-func (m *MaturingVSCPacket) MarshalTo(dAtA []byte) (int, error) {
-	size := m.Size()
-	return m.MarshalToSizedBuffer(dAtA[:size])
-}
-
-func (m *MaturingVSCPacket) MarshalToSizedBuffer(dAtA []byte) (int, error) {
-	i := len(dAtA)
-	_ = i
-	var l int
-	_ = l
-	if m.MaturityTime != 0 {
-		i = encodeVarintGenesis(dAtA, i, uint64(m.MaturityTime))
-		i--
-		dAtA[i] = 0x10
-	}
-	if m.VscId != 0 {
-		i = encodeVarintGenesis(dAtA, i, uint64(m.VscId))
-		i--
-		dAtA[i] = 0x8
-	}
-	return len(dAtA) - i, nil
-}
-
 func (m *HeightToValsetUpdateID) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -711,21 +621,6 @@ func (m *GenesisState) Size() (n int) {
 	return n
 }
 
-func (m *MaturingVSCPacket) Size() (n int) {
-	if m == nil {
-		return 0
-	}
-	var l int
-	_ = l
-	if m.VscId != 0 {
-		n += 1 + sovGenesis(uint64(m.VscId))
-	}
-	if m.MaturityTime != 0 {
-		n += 1 + sovGenesis(uint64(m.MaturityTime))
-	}
-	return n
-}
-
 func (m *HeightToValsetUpdateID) Size() (n int) {
 	if m == nil {
 		return 0
@@ -1201,94 +1096,6 @@ func (m *GenesisState) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
-func (m *MaturingVSCPacket) Unmarshal(dAtA []byte) error {
-	l := len(dAtA)
-	iNdEx := 0
-	for iNdEx < l {
-		preIndex := iNdEx
-		var wire uint64
-		for shift := uint(0); ; shift += 7 {
-			if shift >= 64 {
-				return ErrIntOverflowGenesis
-			}
-			if iNdEx >= l {
-				return io.ErrUnexpectedEOF
-			}
-			b := dAtA[iNdEx]
-			iNdEx++
-			wire |= uint64(b&0x7F) << shift
-			if b < 0x80 {
-				break
-			}
-		}
-		fieldNum := int32(wire >> 3)
-		wireType := int(wire & 0x7)
-		if wireType == 4 {
-			return fmt.Errorf("proto: MaturingVSCPacket: wiretype end group for non-group")
-		}
-		if fieldNum <= 0 {
-			return fmt.Errorf("proto: MaturingVSCPacket: illegal tag %d (wire type %d)", fieldNum, wire)
-		}
-		switch fieldNum {
-		case 1:
-			if wireType != 0 {
-				return fmt.Errorf("proto: wrong wireType = %d for field VscId", wireType)
-			}
-			m.VscId = 0
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowGenesis
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				m.VscId |= uint64(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-		case 2:
-			if wireType != 0 {
-				return fmt.Errorf("proto: wrong wireType = %d for field MaturityTime", wireType)
-			}
-			m.MaturityTime = 0
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowGenesis
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				m.MaturityTime |= uint64(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-		default:
-			iNdEx = preIndex
-			skippy, err := skipGenesis(dAtA[iNdEx:])
-			if err != nil {
-				return err
-			}
-			if (skippy < 0) || (iNdEx+skippy) < 0 {
-				return ErrInvalidLengthGenesis
-			}
-			if (iNdEx + skippy) > l {
-				return io.ErrUnexpectedEOF
-			}
-			iNdEx += skippy
-		}
-	}
-
-	if iNdEx > l {
-		return io.ErrUnexpectedEOF
-	}
-	return nil
-}
 func (m *HeightToValsetUpdateID) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
diff --git a/x/ccv/consumer/types/genesis_test.go b/x/ccv/consumer/types/genesis_test.go
index 844097abb9..eb69c8cf70 100644
--- a/x/ccv/consumer/types/genesis_test.go
+++ b/x/ccv/consumer/types/genesis_test.go
@@ -294,9 +294,9 @@ func TestValidateRestartGenesisState(t *testing.T) {
 		{
 			"valid restart consumer genesis state: maturing packets",
 			types.NewRestartGenesisState("ccvclient", "ccvchannel", []types.MaturingVSCPacket{
-				{1, uint64(time.Now().UnixNano())},
-				{3, uint64(time.Now().UnixNano())},
-				{5, uint64(time.Now().UnixNano())},
+				{1, time.Now().UTC()},
+				{3, time.Now().UTC()},
+				{5, time.Now().UTC()},
 			}, valUpdates, heightToValsetUpdateID, ccv.ConsumerPacketDataList{},
 				[]types.OutstandingDowntime{{ValidatorConsensusAddress: sdk.ConsAddress(validator.Address.Bytes()).String()}},
 				types.LastTransmissionBlockHeight{}, params),
@@ -310,14 +310,14 @@ func TestValidateRestartGenesisState(t *testing.T) {
 		{
 			"invalid restart consumer genesis state: maturing packet vscId is invalid",
 			types.NewRestartGenesisState("ccvclient", "ccvchannel", []types.MaturingVSCPacket{
-				{0, uint64(time.Now().UnixNano())},
+				{0, time.Now().UTC()},
 			}, valUpdates, nil, ccv.ConsumerPacketDataList{}, nil, types.LastTransmissionBlockHeight{}, params),
 			true,
 		},
 		{
 			"invalid restart consumer genesis state: maturing packet time is invalid",
 			types.NewRestartGenesisState("ccvclient", "ccvchannel", []types.MaturingVSCPacket{
-				{1, 0},
+				{1, time.Time{}},
 			}, valUpdates, nil, ccv.ConsumerPacketDataList{}, nil, types.LastTransmissionBlockHeight{}, params),
 			true,
 		},
@@ -365,12 +365,12 @@ func TestValidateRestartGenesisState(t *testing.T) {
 		{
 			"invalid restart consumer genesis state: nil height to validator set id mapping",
 			types.NewRestartGenesisState("ccvclient", "",
-				[]types.MaturingVSCPacket{{1, 0}}, valUpdates, nil, ccv.ConsumerPacketDataList{}, nil, types.LastTransmissionBlockHeight{}, params),
+				[]types.MaturingVSCPacket{{1, time.Time{}}}, valUpdates, nil, ccv.ConsumerPacketDataList{}, nil, types.LastTransmissionBlockHeight{}, params),
 			true,
 		}, {
 			"invalid restart consumer genesis state: maturing packet defined when handshake is still in progress",
 			types.NewRestartGenesisState("ccvclient", "",
-				[]types.MaturingVSCPacket{{1, 0}}, valUpdates, heightToValsetUpdateID, ccv.ConsumerPacketDataList{}, nil, types.LastTransmissionBlockHeight{}, params),
+				[]types.MaturingVSCPacket{{1, time.Time{}}}, valUpdates, heightToValsetUpdateID, ccv.ConsumerPacketDataList{}, nil, types.LastTransmissionBlockHeight{}, params),
 			true,
 		},
 		{
diff --git a/x/ccv/consumer/types/keys.go b/x/ccv/consumer/types/keys.go
index 46fb5e9b8a..1e2d6ae0a8 100644
--- a/x/ccv/consumer/types/keys.go
+++ b/x/ccv/consumer/types/keys.go
@@ -2,8 +2,11 @@ package types
 
 import (
 	"encoding/binary"
+	time "time"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
+
+	utils "github.com/cosmos/interchain-security/x/ccv/utils"
 )
 
 const (
@@ -99,17 +102,17 @@ func PendingChangesKey() []byte {
 	return []byte{PendingChangesByteKey}
 }
 
-// PacketMaturityTimeKey returns the key for storing maturity time for a given received VSC packet id
-func PacketMaturityTimeKey(id uint64) []byte {
-	seqBytes := make([]byte, 8)
-	binary.BigEndian.PutUint64(seqBytes, id)
-	return append([]byte{PacketMaturityTimeBytePrefix}, seqBytes...)
-}
-
-// IdFromPacketMaturityTimeKey returns the packet id corresponding to a maturity time full key (including prefix)
-func IdFromPacketMaturityTimeKey(key []byte) uint64 {
-	// Bytes after single byte prefix are converted to uin64
-	return binary.BigEndian.Uint64(key[1:])
+// PacketMaturityTimeKey returns the key for storing the maturity time for a given received VSC packet id
+func PacketMaturityTimeKey(vscID uint64, maturityTime time.Time) []byte {
+	ts := uint64(maturityTime.UTC().UnixNano())
+	return utils.AppendMany(
+		// Append the prefix
+		[]byte{PacketMaturityTimeBytePrefix},
+		// Append the time
+		sdk.Uint64ToBigEndian(ts),
+		// Append the vscID
+		sdk.Uint64ToBigEndian(vscID),
+	)
 }
 
 // HeightValsetUpdateIDKey returns the key to a valset update ID for a given block height
diff --git a/x/ccv/provider/types/keys.go b/x/ccv/provider/types/keys.go
index 30a473b90d..122fbdd54f 100644
--- a/x/ccv/provider/types/keys.go
+++ b/x/ccv/provider/types/keys.go
@@ -7,6 +7,8 @@ import (
 	"time"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
+
+	ccvutils "github.com/cosmos/interchain-security/x/ccv/utils"
 )
 
 type Status int
@@ -173,7 +175,7 @@ func InitTimeoutTimestampKey(chainID string) []byte {
 // The key has the following format: PendingCAPBytePrefix | timestamp.UnixNano() | chainID
 func PendingCAPKey(timestamp time.Time, chainID string) []byte {
 	ts := uint64(timestamp.UTC().UnixNano())
-	return AppendMany(
+	return ccvutils.AppendMany(
 		// Append the prefix
 		[]byte{PendingCAPBytePrefix},
 		// Append the time
@@ -187,7 +189,7 @@ func PendingCAPKey(timestamp time.Time, chainID string) []byte {
 // The key has the following format: PendingCRPBytePrefix | timestamp.UnixNano() | chainID
 func PendingCRPKey(timestamp time.Time, chainID string) []byte {
 	ts := uint64(timestamp.UTC().UnixNano())
-	return AppendMany(
+	return ccvutils.AppendMany(
 		// Append the prefix
 		[]byte{PendingCRPBytePrefix},
 		// Append the time
@@ -306,7 +308,7 @@ func MustParseThrottledPacketDataKey(key []byte) (string, uint64) {
 // GlobalSlashEntryKey returns the key for storing a global slash queue entry.
 func GlobalSlashEntryKey(entry GlobalSlashEntry) []byte {
 	recvTime := uint64(entry.RecvTime.UTC().UnixNano())
-	return AppendMany(
+	return ccvutils.AppendMany(
 		// Append byte prefix
 		[]byte{GlobalSlashEntryBytePrefix},
 		// Append time bz
@@ -341,20 +343,12 @@ func ParseGlobalSlashEntryKey(bz []byte) (
 	return recvTime, chainID, ibcSeqNum
 }
 
-// AppendMany appends a variable number of byte slices together
-func AppendMany(byteses ...[]byte) (out []byte) {
-	for _, bytes := range byteses {
-		out = append(out, bytes...)
-	}
-	return out
-}
-
 // ChainIdAndTsKey returns the key with the following format:
 // bytePrefix | len(chainID) | chainID | timestamp
 func ChainIdAndTsKey(prefix byte, chainID string, timestamp time.Time) []byte {
 	partialKey := ChainIdWithLenKey(prefix, chainID)
 	timeBz := sdk.FormatTimeBytes(timestamp)
-	return AppendMany(
+	return ccvutils.AppendMany(
 		// Append the partialKey
 		partialKey,
 		// Append the time bytes
@@ -366,7 +360,7 @@ func ChainIdAndTsKey(prefix byte, chainID string, timestamp time.Time) []byte {
 // bytePrefix | len(chainID) | chainID
 func ChainIdWithLenKey(prefix byte, chainID string) []byte {
 	chainIdL := len(chainID)
-	return AppendMany(
+	return ccvutils.AppendMany(
 		// Append the prefix
 		[]byte{prefix},
 		// Append the chainID length
@@ -396,7 +390,7 @@ func ParseChainIdAndTsKey(prefix byte, bz []byte) (string, time.Time, error) {
 // bytePrefix | len(chainID) | chainID | uint64(ID)
 func ChainIdAndUintIdKey(prefix byte, chainID string, uintId uint64) []byte {
 	partialKey := ChainIdWithLenKey(prefix, chainID)
-	return AppendMany(
+	return ccvutils.AppendMany(
 		// Append the partialKey
 		partialKey,
 		// Append the uint id bytes
@@ -421,7 +415,7 @@ func ParseChainIdAndUintIdKey(prefix byte, bz []byte) (string, uint64, error) {
 // bytePrefix | len(chainID) | chainID | ConsAddress
 func ChainIdAndConsAddrKey(prefix byte, chainID string, addr sdk.ConsAddress) []byte {
 	partialKey := ChainIdWithLenKey(prefix, chainID)
-	return AppendMany(
+	return ccvutils.AppendMany(
 		// Append the partialKey
 		partialKey,
 		// Append the addr bytes
diff --git a/x/ccv/utils/utils.go b/x/ccv/utils/utils.go
index 3f1978f64f..d1b3f6f38b 100644
--- a/x/ccv/utils/utils.go
+++ b/x/ccv/utils/utils.go
@@ -98,3 +98,11 @@ func SendIBCPacket(
 
 	return channelKeeper.SendPacket(ctx, channelCap, packet)
 }
+
+// AppendMany appends a variable number of byte slices together
+func AppendMany(byteses ...[]byte) (out []byte) {
+	for _, bytes := range byteses {
+		out = append(out, bytes...)
+	}
+	return out
+}