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

177,670 days

From Saturday, March 30, 1540 to Tuesday, September 8, 2026.

Monday–Friday weekdays126,907
Weeks and days25,381w 3d
Calendar span486 years, 5 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.