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

143,004 days

From Tuesday, March 20, 2418 to Monday, September 7, 2026.

Monday–Friday weekdays102,146
Weeks and days20,429w 1d
Calendar span391 years, 6 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.