Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
150,105 days
From Thursday, September 17, 1615 to Monday, September 7, 2026.
Monday–Friday weekdays107,217
Weeks and days21,443w 4d
Calendar span410 years, 11 months, 21 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.