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

185,066 days

From Tuesday, December 30, 1519 to Tuesday, September 8, 2026.

Monday–Friday weekdays132,190
Weeks and days26,438w 0d
Calendar span506 years, 8 months, 9 days

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