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

40,801 days

From Sunday, December 20, 1914 to Friday, September 4, 2026.

Monday–Friday weekdays29,145
Weeks and days5,828w 5d
Calendar span111 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.