Time Duration Calculator
From this moment to that moment — days, hours, minutes, and totals, with an optional break deduction.
Duration
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Total hours
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Total minutes
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Working days (8h)
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Duration across days
Time-card math usually stays inside one day; real schedules don't. On-call stretches, 24-hour shifts, travel days, and project deadlines all span midnights and weekends. This calculator takes the full timestamp pair and returns the breakdown every way you might need it: days/hours/minutes, total hours (decimal), total minutes, and 8-hour working-day equivalents.
Frequently asked questions
How do I calculate duration between two dates and times?
Enter both fully — date plus time. The duration comes out as days, hours, and minutes, plus total hours and total minutes. Subtract a break if part of it wasn't working time.
Does it handle overnight and multi-day spans?
Yes — Friday 6:00 PM to Monday 9:00 AM is 2 d 15 h 0 m. Any pair of moments up to years apart works.
What about time zones?
Both timestamps are treated in your device's local time zone; the difference is exact as long as both moments are in the same zone (DST crossing noted in results when it applies).