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

219,147 days

From Friday, September 8, 1426 to Wednesday, September 9, 2026.

Monday–Friday weekdays156,533
Weeks and days31,306w 5d
Calendar span600 years, 1 day

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