# Day of the Week Calculator

> Day of the week calculator that finds the weekday for any date, past or future, including leap years, in seconds. Free, runs in your browser, no signup.

- **Canonical URL:** https://boringtoolskit.com/day-of-the-week-calculator/
- **Category:** Everyday Calculators
- **Evidence level:** catalogue
- **Reviewed:** July 26, 2026
- **Last verified:** 2026-10-12
- **Privacy:** Inputs and results stay in this browser unless the page clearly labels an external request.

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