Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
151,118 days
From Saturday, December 8, 1612 to Monday, September 7, 2026.
Monday–Friday weekdays107,941
Weeks and days21,588w 2d
Calendar span413 years, 8 months, 30 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.