Find Friday the 13th
List every Friday that lands on the 13th within a range of years. Runs entirely in your browser, so your data never leaves your device.
Output
The result appears here as you type.
How to use Find Friday the 13th
- 1. Set the year range. Enter From year and To year to define the span to search, such as 2015 to 2020, and every Friday landing on the 13th within it gets listed.
- 2. Pick a separator. Set Separator to choose how the matching dates are joined, such as a newline or comma, so the output fits your spreadsheet or document.
- 3. Read the matched dates. The output lists each date where the 13th of a month fell on a Friday, which happens between one and three times per year.
- 4. Copy the list. Copy the dates into a novelty calendar, event page, or article about the superstition around the unlucky day.
When to use Find Friday the 13th
Find Friday the 13th lists every date within a chosen year range where the 13th of the month falls on a Friday. It handles the underlying weekday math so you do not have to check a calendar month by month.
- Writing a superstition article. A lifestyle site publishing a piece on paraskevidekatriaphobia wants an accurate list of upcoming Friday the 13th dates to reference in the article.
- Planning a horror movie marathon. A theater programming a Friday the 13th themed screening night wants to confirm which Fridays across the next few years actually qualify.
- Building a novelty calendar app. A calendar app highlighting quirky dates wants a reliable list of Friday the 13th occurrences to flag automatically for users.
- Checking a personal pattern. Someone curious how often their unlucky streak lines up with the date wants to see every Friday the 13th across their adult life.
Examples
Friday the 13ths in 2015
Output
2015-02-13 2015-03-13 2015-11-13
About the Find Friday the 13th tool
Find Friday the 13th is a free online tool that works entirely inside your web browser. List every Friday that lands on the 13th within a range of years. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 90 Time utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with 3 settings, including From year, To year and Separator, and the result refreshes the moment you change one. A worked example further down the page shows exactly what the tool produces for a real input.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Is Find Friday the 13th free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Does the generator send anything to a server?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How do I get a different result?
Run the generator again. Each run is computed fresh on your device, and any options you change are applied to the next result immediately.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.
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