Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
126,643 days
From Tuesday, December 12, 1679 to Monday, September 7, 2026.
Monday–Friday weekdays90,459
Weeks and days18,091w 6d
Calendar span346 years, 8 months, 26 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.