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

29,562 days

From Thursday, September 27, 1945 to Friday, September 4, 2026.

Monday–Friday weekdays21,116
Weeks and days4,223w 1d
Calendar span80 years, 11 months, 8 days

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