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

129,021 days

From Friday, December 7, 2379 to Monday, September 7, 2026.

Monday–Friday weekdays92,159

Weeks and days18,431w 4d

Calendar span353 years, 3 months

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