What is a time duration?

A time duration is how long it is from one time of day to another. From 08:45 to 17:20 it's 8 hours 35 minutes. Working that out by hand means borrowing minutes and hours, which is easy to get wrong, especially when the range crosses midnight.

Tool description

Enter a start time and an end time. The tool shows:

  • The duration in hours and minutes, such as 8 h 35 min
  • The same duration in decimal hours, such as 8.58, the form timesheets and payroll use
  • The total number of minutes
  • The total number of seconds

When the end time is earlier than the start time, the tool counts the range past midnight into the next day and tells you so. A night shift from 22:00 to 06:30 is 8 hours 30 minutes. When both times are the same, the duration is zero.

Examples

  • 08:45 to 17:20: 8 h 35 min, 8.58 decimal hours, 515 minutes
  • 09:00 to 12:30: 3 h 30 min, 3.50 decimal hours, 210 minutes
  • 22:00 to 06:30: 8 h 30 min, past midnight
  • 13:15 to 13:45: 30 min, 0.50 decimal hours

Features

  • Duration between any two times of day
  • Ranges past midnight, like night shifts
  • Decimal hours for timesheets
  • Totals in minutes and seconds
  • Numbers in your regional number format