Time Duration Calculator
Calculate time intervals, add/subtract durations, and track elapsed time with precision
Calculate Time Difference
Enter two dates and times to calculate the duration between them
Duration Result
0
Years
0
Months
0
Days
0
Hours
0
Minutes
0
Seconds
0
Weeks
0
Weekdays
0 days
Total Duration
Start Date
Jan 1, 2023
End Date
Today
Timezone
Local Time
Add or Subtract Time
Enter a start date/time and add or subtract a duration
Duration to Add/Subtract
Result Date & Time
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Calculated Result
Base Date
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Operation
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Time Added/Subtracted
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Stopwatch & Timer
Track elapsed time with lap times and countdown timer
00:00:00.00
Lap Times
No lap times recorded yet
Countdown Timer
01:00:00
Countdown Timer