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

149,361 days

From Wednesday, August 15, 2435 to Monday, September 7, 2026.

Monday–Friday weekdays106,687
Weeks and days21,337w 2d
Calendar span408 years, 11 months, 8 days

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