Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
162,350 days
From Tuesday, March 9, 1582 to Monday, September 7, 2026.
Monday–Friday weekdays115,964
Weeks and days23,192w 6d
Calendar span444 years, 5 months, 29 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.