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

89,820 days

From Wednesday, October 4, 1780 to Saturday, September 5, 2026.

Monday–Friday weekdays64,157
Weeks and days12,831w 3d
Calendar span245 years, 11 months, 1 day

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