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

219,270 days

From Monday, May 8, 1426 to Wednesday, September 9, 2026.

Monday–Friday weekdays156,622
Weeks and days31,324w 2d
Calendar span600 years, 4 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.