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

10,490 days

From Monday, December 15, 1997 to Friday, September 4, 2026.

Monday–Friday weekdays7,494
Weeks and days1,498w 4d
Calendar span28 years, 8 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.