Friday The 13th Finder
Find every Friday the 13th between two dates. Filter by month, format output, choose delimiter.
What Is Friday the 13th Finder?
Friday the 13th Finder lists every calendar date that is both the 13th day of the month and a Friday, inside a date range you choose. Optional filters limit results to a specific month or change how dates are formatted for export.
How to Use It
- Set start and end dates (inclusive range).
- Optionally pick a month to search only January, May, etc.
- Pick a date format and separator for lists with many hits.
- Copy or download the result text.
Notes
Calculations use your browser's local calendar rules. Friday the 13th appears at least once every year and can occur up to three times in the same calendar year (for example 2015).
Frequently Asked Questions
Why might I get no results?
The end date might be before the start date, or your month filter may exclude every Friday the 13th in the range. Widen the range or set month back to "Any month".
Does padding affect all formats?
Padding applies to numeric month and day parts in numeric-style outputs. Long text formats keep full month names regardless.
Is this tied to time zones?
No times are involved—only whole calendar dates—so time zones do not change which day is the 13th.
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