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

180,246 days

From Friday, March 8, 2520 to Tuesday, September 8, 2026.

Monday–Friday weekdays128,748

Weeks and days25,749w 3d

Calendar span493 years, 6 months

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