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

4,488 days

From Monday, December 20, 2038 to Sunday, September 6, 2026.

Monday–Friday weekdays3,206
Weeks and days641w 1d
Calendar span12 years, 3 months, 14 days

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