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

31,305 days

From Thursday, December 19, 1940 to Friday, September 4, 2026.

Monday–Friday weekdays22,361
Weeks and days4,472w 1d
Calendar span85 years, 8 months, 16 days

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