Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
162,338 days
From Sunday, March 21, 1582 to Monday, September 7, 2026.
Monday–Friday weekdays115,956
Weeks and days23,191w 1d
Calendar span444 years, 5 months, 17 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.