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

39,462 days

From Tuesday, August 20, 1918 to Friday, September 4, 2026.

Monday–Friday weekdays28,188
Weeks and days5,637w 3d
Calendar span108 years, 15 days

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