Days between dates
Every way of measuring the same gap, at the same time.
Saturday, 1 January 2000
Sunday, 23 August 2026
End date excluded — the count is the number of whole days between the two.
- Total days9,731
- Years, months and days26y 7m 22d
- Weeks and days1390w 1d
- Business days6,950
- Hours233,544
- Minutes14,012,640
Business days count Monday to Friday and do not deduct public holidays — those differ by country, region and year, and a number that is silently wrong for where you live would be worse than one that is clearly defined.
Why this isn’t in the time converter
The time converter handles durations: a second is a second and a week is always 604,800 of them, so every unit is a fixed multiple of the next. Calendars don’t work that way. February is 28 days, or 29; the gap from 31 January to 31 March is 59 days one year and 60 the next. There is no factor that turns months into days, which is why this is a separate tool rather than another row in that table.
Dates here are handled as calendar dates and nothing else — no times, no offsets, no daylight saving. That matters more than it sounds: the usual way to write this feature subtracts two timestamps and divides by 86,400,000, which returns 30.96 days across a spring-forward boundary and hides it behind a rounding.
Which day does the count include?
The end date is excluded, so 1 January to 2 January is one day. That’s the convention every spreadsheet uses for date subtraction, and it’s the one that makes consecutive spans add up: January to February plus February to March equals January to March. If you’re counting how many days something runs for, inclusive of both ends, add one.
