Borks if you're < 1 hour from Beer o'Clock

[cah-chrisembree]

I have some ugly hacks (too ugly to submit) that basically pass Seconds to beer_o_clock() as parameters. The If $2 -gt $1 still works and it eliminates the need for the datediff function.

local secs=$(date -d 'now' +"%s")
local beer_is_at=16
local beer_seconds=$(date -d "today ${beer_is_at}:00:00" '+%s')

And call with
case $day in
[1-5]*) beer_o_clock $beer_seconds $hrs;; # mon - fri

It makes this much cleaner too:
local hrsUntil=$(( ($1 - $2) / 60 / 60 ))
local minUntil=$(( ($1 - $2) / 60 ))

Just my $0.02. Was fun playing with this.

[hhsnopek]

Gonna check this out today!

[cah-chrisembree]

I also discovered that you need to subtract out the large values for the countdown to make sense...

  local later=$1
  local hrsUntil=$(( ($later - $now) / 60 / 60 ))
  local minUntil=$(( ($later - $now - $hrsUntil * 3600) / 60 ))
  local secUntil=$(( ($later - $now - $hrsUntil * 3600 - $minUntil * 60) ))

Oh, the seconds were added by a co-worker suggestion. ;) We're having fun with this.