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.

The end date comes before the start date

1,201 days

From Monday, December 17, 2029 to Thursday, September 3, 2026.

Monday–Friday weekdays857
Weeks and days171w 4d
Calendar span3 years, 3 months, 14 days

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