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

26,498 days

From Monday, March 23, 2099 to Friday, September 4, 2026.

Monday–Friday weekdays18,926
Weeks and days3,785w 3d
Calendar span72 years, 6 months, 19 days

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