Day of the Week Calculator

Find the day of the week for any date.

Day of the week Wednesday

Formula: Sakamoto's algorithm

Step-by-step with your numbers:
1. Values used:
2. Year = 2,026
3. Month = 6
4. Day = 24
5.
6. Day of the week = Wednesday
Did we solve your problem today?

Find which day of the week any calendar date falls on.

The math behind it

Sakamoto's algorithm uses a lookup table and the year's leap-year corrections to find the weekday.

Worked example

24 June 2026 is a Wednesday.

FAQ

Does it handle leap years?

Yes - the formula accounts for the Gregorian leap-year rules.