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

42,616 days

From Friday, December 31, 1909 to Friday, September 4, 2026.

Monday–Friday weekdays30,440
Weeks and days6,088w 0d
Calendar span116 years, 8 months, 4 days

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