Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
26,861 days
From Sunday, March 21, 2100 to Friday, September 4, 2026.
Monday–Friday weekdays19,185
Weeks and days3,837w 2d
Calendar span73 years, 6 months, 17 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.