diff --git a/application/sbc.c b/application/sbc.c
index faa1b08..7bbd797 100644
--- a/application/sbc.c
+++ b/application/sbc.c
@@ -661,6 +661,28 @@ static int sbc_io_process()
         printf("#GET-STATION: %d\r\n", config_block()->app_cfg.station_number); 
         valid = 1; 
       }
+      else if (!strcmp(in,"GET-TIMESYNC-INTERVAL"))
+      {
+        printf("#GET-TIMESYNC-INTERVAL: %d\r\n", config_block()->app_cfg.timesync_interval); 
+        valid = 1; 
+      }
+      else if (prefix_matches(in,"SET-TIMESYNC-INTERVAL"))
+      {
+        const char * nxt; 
+        int interval; 
+        if (!parse_int(in+sizeof("SET-TIMESYNC-INTERVAL"), &nxt,&interval))
+        {
+          printf("#SET-TIMESYNC-INTERVAL %d\r\n", interval); 
+          config_block()->app_cfg.timesync_interval = interval; 
+          need_sync = 1; 
+          valid = 1; 
+        }
+        else
+        {
+          printf("#ERR: trouble parsing int\r\n"); 
+        }
+      }
+ 
       else if (!strcmp(in,"FLUSH"))
       {
         flush_buffers(); 
diff --git a/config/config.h b/config/config.h
index 9de97f6..6d3552f 100644
--- a/config/config.h
+++ b/config/config.h
@@ -24,7 +24,7 @@
 #define APP_REV "REVE"
 #endif
 
-#define APP_VERSION "Summit.061622.2-" APP_REV
+#define APP_VERSION "Summit.061722.0-" APP_REV
 
 #define MODE_CHANGE_MINTICKS 100
 
diff --git a/lorawan/lorawan.c b/lorawan/lorawan.c
index 10a3d16..b8f0165 100644
--- a/lorawan/lorawan.c
+++ b/lorawan/lorawan.c
@@ -879,6 +879,7 @@ int lorawan_process(int up)
      int have_time = get_time() > 1000000000; 
      should_request_time = 1; 
      int delay_in_secs = have_time ? config_block()->app_cfg.timesync_interval :  low_power_mode ?  300 : 60; 
+     if (delay_in_secs < 60) delay_in_secs = 60; 
      time_check = up + delay_in_secs ;
      cant_sleep=1; 
    }
diff --git a/shared/config_block.c b/shared/config_block.c
index bde26da..de6b986 100644
--- a/shared/config_block.c
+++ b/shared/config_block.c
@@ -33,6 +33,7 @@ static  application_cfg_t dflt_ac =
      .lte_stats_interval = 60, 
      .lora_stats_interval = 60, 
      .lora_stats_interval_low_power_mode = 600, 
+     .timesync_interval = 1800,
 #ifdef _RNO_REV_D
      .turnon_voltage = 13, 
      .turnoff_voltage = 12 
@@ -40,7 +41,6 @@ static  application_cfg_t dflt_ac =
      .turnon_voltage = 30, 
      .turnoff_voltage = 20 
 #endif 
-
    }; 
 
 
@@ -106,7 +106,7 @@ int verify_app_cfg(application_cfg_t* ac)
 #endif
   if (ac->timesync_interval == -1) 
   {
-    ac->timesync_interval = 4*3600; 
+    ac->timesync_interval = 1800; 
   }
   return changed; 
 }