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

244,896 days

From Friday, March 12, 1356 to Saturday, September 12, 2026.

Monday–Friday weekdays174,925
Weeks and days34,985w 1d
Calendar span670 years, 6 months

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