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

180,521 days

From Sunday, December 8, 2520 to Tuesday, September 8, 2026.

Monday–Friday weekdays128,943

Weeks and days25,788w 5d

Calendar span494 years, 3 months

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