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.

Excluding the start date

172,921 days

From Tuesday, March 31, 1553 to Tuesday, September 8, 2026.

Monday–Friday weekdays123,515
Weeks and days24,703w 0d
Calendar span473 years, 5 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.