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

38,609 days

From Monday, December 20, 1920 to Friday, September 4, 2026.

Monday–Friday weekdays27,579
Weeks and days5,515w 4d
Calendar span105 years, 8 months, 15 days

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