Days Between Dates Calculator
Free days between dates calculator: count the days, weeks, months, years, hours, minutes and seconds between any two dates, with optional end-date inclusion, business days (custom weekends and holidays), time of day and shareable links.
Show the result as…
The largest units are filled first and the smallest unit you pick shows any remainder as a decimal. Months are calendar months (31 Jan + 1 month = 28 Feb), not 30-day blocks.
Totals
Business days
Weekend days & holidays
Details
Start
End
Weekdays in this period
Milestones
Time zone & daylight saving
When your two times straddle a daylight-saving change, the real elapsed time differs from the clock difference by an hour. That is shown here when it happens.
How this calculator counts
Pick a start and end date and the calculator shows the number of days between them. By default the start date is counted and the end date is not, so Monday to Wednesday is 2 days. Tick Include the end date when you want both days counted (Monday to Wednesday is then 3 days), which is common for hotel stays, project schedules and day counts that must include the last day.
- Any combination of units: years, months, weeks, days, hours, minutes and seconds, in whatever mix you tick.
- Business days: choose your weekend, skip the public holidays of Canada, the USA, the UK, Australia or Vietnam, and add your own days off.
- Time of day and time zones: add start and end times, with a note when daylight saving changes the real elapsed time.
- Leap years are handled correctly, and every result has a shareable link.