All Tools VerseFind the Day of the Year
Find the day-of-year number for any date, with the days remaining, leap years included.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Calculated locally in your browser. Nothing is uploaded.
How to Use Find the Day of the Year
- Pick a date. Any date in the year you care about.
- Find the day number. The position in the year is counted.
- Read the result. It shows the day number and days remaining.
- Copy the result. Click Copy result. It all runs in your browser.
Frequently Asked Questions
What is the day of the year?
The count of days from the 1st of January, so the 1st is day 1 and the 31st of December is day 365 or 366.
Does it account for leap years?
Yes. In a leap year the total is 366, so the days remaining are counted correctly.
What is this useful for?
Ordinal dates appear in logs, planning, and some data formats, where the day number is easier to work with.
Is anything uploaded?
No. The calculation runs entirely in your browser, so nothing leaves the tab.
Is it free?
Yes. Every tool here is free to use with no sign up.
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