What Day of the Week
Find the weekday, week number and more for any date.
Reach for What Day of the Week when you want a quick, focused tool that just works — no setup, no sign-up and no clutter. Find the weekday, week number and more for any date. It's free and private, running entirely in your browser.
About What Day of the Week
What Day of the Week is a free online tool that does one job well. Find the weekday, week number and more for any date. With a clean interface and no clutter, everything runs in your browser with no sign-up and no install, and your data stays on your own device — so it's fast, private and always ready.
How to use What Day of the Week
- 1Open what Day of the Week and enter your details.
- 2The tool does the work instantly — review the result on the spot.
- 3Copy, save or reset and run it again; it's free and unlimited.
Why use What Day of the Week?
- ✓Anyone who wants a quick, focused tool that does one job well.
- ✓No learning curve — open the page and get your result.
- ✓Free and private — runs in your browser with no sign-up.
Frequently asked questions
What does What Day of the Week do?+
Find the weekday, week number and more for any date. It's a focused, single-purpose tool that gives you the result you need without any extra steps.
Is What Day of the Week free to use?+
Yes, completely free with no hidden costs, no sign-up and no credit card. There are no usage limits — use it as often as you like.
Do I need an account or to install anything?+
No account, no download, no install. What Day of the Week is a web page that loads instantly and works on phones, tablets and computers — it even keeps working offline once the page has loaded.
Is my data private?+
Yes. What Day of the Week runs entirely in your browser — nothing you type is uploaded to a server. Where the tool saves your work, it stays on your own device in local storage, so your data never leaves your computer or phone.
Embed What Day of the Week on your website
Want What Day of the Weekon your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.
<iframe src="https://tooljolt.com/tools/weekday-finder" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="What Day of the Week — ToolJolt" loading="lazy"></iframe>