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

181,702 days

From Saturday, March 16, 1529 to Tuesday, September 8, 2026.

Monday–Friday weekdays129,787
Weeks and days25,957w 3d
Calendar span497 years, 5 months, 23 days

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