Timer - Ability to set specific time

I use the timer plugin pretty often when I need a countdown timer, but it would be nice if there was also a second type of timer, the ability to have a timer go off at a specified time.

So I could create a new timer that just says "2:00 PM" and a timer will go off then. Currently, I need to figure out how many hours and minutes it will be until 2:00, and then set a countdown timer for that amount.

Thanks