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

116,532 days

From Wednesday, September 26, 2345 to Sunday, September 6, 2026.

Monday–Friday weekdays83,238
Weeks and days16,647w 3d
Calendar span319 years, 20 days

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