Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
148,193 days
From Friday, December 11, 1620 to Monday, September 7, 2026.
Monday–Friday weekdays105,851
Weeks and days21,170w 3d
Calendar span405 years, 8 months, 27 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.