Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
27,146 days
From Friday, December 31, 2100 to Friday, September 4, 2026.
Monday–Friday weekdays19,390
Weeks and days3,878w 0d
Calendar span74 years, 3 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.