Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

Excluding the start date

24,739 days

From Thursday, December 11, 1958 to Friday, September 4, 2026.

Monday–Friday weekdays17,671
Weeks and days3,534w 1d
Calendar span67 years, 8 months, 24 days

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.