Determine which day of the week any date falls on.
Because the calendar repeats every seven days, dividing the day number by seven reveals the weekday of any date. Knowing the weekday helps with scheduling, historical dates and planning around weekends.
Day of Week
Weekday derived from the day count modulo 7 (Monday to Sunday)
Weekday derived from the day count modulo 7 (Monday to Sunday) Because the calendar repeats every seven days, dividing the day number by seven reveals the weekday of any date.
Knowing the weekday helps with scheduling, historical dates and planning around weekends.
This calculator takes 3 inputs: Year, Month, Day. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.