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

179,908 days

From Monday, February 12, 1534 to Tuesday, September 8, 2026.

Monday–Friday weekdays128,506
Weeks and days25,701w 1d
Calendar span492 years, 6 months, 27 days

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