Duration between two dates and times
Measure the gap between two dates and times in days, hours and minutes, with whole-unit totals for longer periods. Both inputs are interpreted as UTC.
Runs in your browser — your input is not uploaded to ToolsNow.
Months have different lengths, so a calendar breakdown does not convert to days using one fixed multiplier. These entered times are treated as UTC.
How to use
- Enter From and To. Use a date and time for each endpoint, expressed in UTC if you are measuring a real event.
- Read Days, hours, minutes. 2 October 2026 at 09:00 to 3 October at 10:30 gives 1 day, 1 hour and 30 minutes.
- Use totals in the unit you need. That example is 1,530 total minutes. Total hours shows 25 complete hours; it is not a decimal-hours figure.
Questions
What happens if I reverse the dates?
The tool shows the same elapsed gap as a positive duration and notes that the second date is earlier.
Which result should I use for elapsed time?
Use Days, hours, minutes or the total minutes. The Calendar row ignores time of day and can give misleading components around month ends; it should not be used as an elapsed-time or billing total.
Does this account for breaks or clock changes?
No breaks are deducted, and UTC arithmetic does not interpret local daylight-saving changes. For separate shifts with unpaid breaks, use the timesheet calculator; for actual elapsed time across a clock change, first express both endpoints in UTC.
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