Time2Next

Time2Next tells you how much time you have until the next commitment in your calendar.
The Today widget shows you the time until your next meeting, while the All-Day widgets shows you upcoming all-day events.

Green - All good; you can keep going.
Yellow - Less than Fifteen minutes; think about wrapping up what you are doing.
Red - Less than Five minutes; Finnish what you're doing, freshen your coffee and prepare for what's next.