About the Day of the Week Calculator
Day of week for any date. Use this free day of the week calculator to get instant results. All calculations run in your browser — nothing is sent to a server.
Frequently asked questions
What does this Day of the Week Calculator do?
Day of week for any date.
Is it free?
Yes — every calculator on Calc Center is free, with no sign-up or account required.
Does it work offline?
The site is a Progressive Web App — after your first visit, most pages work without an internet connection.