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.

The end date comes before the start date

123,914 days

From Sunday, December 12, 2365 to Sunday, September 6, 2026.

Monday–Friday weekdays88,510
Weeks and days17,702w 0d
Calendar span339 years, 3 months, 6 days

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