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

186,302 days

From Friday, August 11, 1516 to Tuesday, September 8, 2026.

Monday–Friday weekdays133,072
Weeks and days26,614w 4d
Calendar span510 years, 28 days

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