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

66,018 days

From Friday, December 5, 1845 to Saturday, September 5, 2026.

Monday–Friday weekdays47,155
Weeks and days9,431w 1d
Calendar span180 years, 9 months

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