bash

Short Description:

Timer-Bot

Full Description

You an your mods can use an arbitrary number of timers, with a short identifier an a long name for messages.

Commands for you and your moderators.
!st [g] [x] - start timer g for x minutes
!at [g] [x] - add x minutes to timer g
!mt [g] [x] - subtract x minutes from timer g
!et [g] - cancel timer g
!nt [g] name - give timer g a name

Commands for everyone:
!help - show help for commands
!tl - show remaining time for all timers

[g] is the identifier of the timer, but cannot contain blanks.

You can give each timer an arbitrary name, which is shown in timer-messages. Or Just use identifiers 1...9,A...Z for 'Timer 1'...'Timer Z'.