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.

Excluding the start date

31,306 days

From Wednesday, December 18, 1940 to Friday, September 4, 2026.

Monday–Friday weekdays22,362
Weeks and days4,472w 2d
Calendar span85 years, 8 months, 17 days

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