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

212,003 days

From Tuesday, March 31, 1446 to Wednesday, September 9, 2026.

Monday–Friday weekdays151,431
Weeks and days30,286w 1d
Calendar span580 years, 5 months, 9 days

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