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

837 days

From Monday, December 18, 2028 to Thursday, September 3, 2026.

Monday–Friday weekdays597
Weeks and days119w 4d
Calendar span2 years, 3 months, 15 days

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