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

244,105 days

From Friday, May 12, 1358 to Saturday, September 12, 2026.

Monday–Friday weekdays174,360
Weeks and days34,872w 1d
Calendar span668 years, 4 months

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