Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
180,703 days
From Thursday, December 10, 1531 to Tuesday, September 8, 2026.
Monday–Friday weekdays129,073
Weeks and days25,814w 5d
Calendar span494 years, 8 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.