Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

The end date comes before the start date

145,622 days

From Tuesday, May 20, 2425 to Monday, September 7, 2026.

Monday–Friday weekdays104,016
Weeks and days20,803w 1d
Calendar span398 years, 8 months, 13 days

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.