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

6,106 days

From Saturday, December 19, 2009 to Monday, September 7, 2026.

Monday–Friday weekdays4,361
Weeks and days872w 2d
Calendar span16 years, 8 months, 19 days

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