Time Calculator

You can add, subtract and convert time-expressions. How long have you been at work today? - So type in: "17:30 - 7:45 =" and you get: 09:45 (9 hours and 45 minutes). you can convert the result in hours. Therefore press "hrs" and you get "9.75 hrs".

Examples:
10:45:30 - (10 hours, 45 minutes and 30 seconds)
:30:20 - (30 minutes and 20 seconds)
10:14.5 - (10 hours and 14.5 minutes or 14 min and 30 sec)
::25 - (25 seconds)
03:00-23:00 => 04:00 X! - (Midnight cross)
23:00-03:00 => -04:00 X! - (Midnight cross)

Midnight cross will be only detected, when timespan is within 12 hours. Some people reported me Errors, and gave me one Star for that, but sorry: 00:02-23:58 are 4 minutes and not -23:56