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

149,123 days

From Saturday, May 26, 1618 to Monday, September 7, 2026.

Monday–Friday weekdays106,516
Weeks and days21,303w 2d
Calendar span408 years, 3 months, 12 days

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