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

247,295 days

From Sunday, August 17, 1349 to Saturday, September 12, 2026.

Monday–Friday weekdays176,640
Weeks and days35,327w 6d
Calendar span677 years, 26 days

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