Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
148,135 days
From Sunday, February 7, 1621 to Monday, September 7, 2026.
Monday–Friday weekdays105,811
Weeks and days21,162w 1d
Calendar span405 years, 7 months
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.