Weekday of a Date
Calculate Weekday of a Date instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Weekday of a Date
Year
Month
Day
Weekday (1=Mon, 7=Sun)
5
More about: Weekday of a Date
What it calculates
The “Weekday of a Date” calculator computes Weekday (1=Mon, 7=Sun) from 3 parameters: year, month, day.
A universal calculator for quick computation.
Example calculation
With parameters Year = 2,026, Month = 5, Day = 8 the result is 5.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.