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

9,851 days

From Thursday, September 16, 1999 to Saturday, September 5, 2026.

Monday–Friday weekdays7,036
Weeks and days1,407w 2d
Calendar span26 years, 11 months, 20 days

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