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

116,519 days

From Thursday, September 13, 2345 to Sunday, September 6, 2026.

Monday–Friday weekdays83,229
Weeks and days16,645w 4d
Calendar span319 years, 7 days

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