Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
147,098 days
From Monday, December 11, 1623 to Monday, September 7, 2026.
Monday–Friday weekdays105,070
Weeks and days21,014w 0d
Calendar span402 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.