Day of year

Find the rank of a date within the year.

Date

Select a date to find its day number within the year, from 1 to 365 or 366, with the number of remaining days.

Date to analyze

Result

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Selected date
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Year type
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Remaining days
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Quick explanation

Choose a date. The tool automatically shows its rank within the year, tells whether the year is common or leap, and calculates the number of days remaining until the end of the year.

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Additional information

Find the day of year

This tool shows the rank of a date within the year. January 1 is day 1, while December 31 is day 365 or 366 depending on the year.

The result updates automatically whenever the date changes.

Common year or leap year

The tool tells whether the selected year is a common year or a leap year. A leap year has 366 days instead of 365.

This is useful when checking the rank of a date after February, because the offset depends on whether February 29 exists.

Remaining days

In addition to the day number within the year, the tool shows how many days remain until the end of the year.

This is useful to quickly place a date within the year, prepare a time reference or check a day number.

Limits and reuse

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To report a bug in the tool, you can use the dedicated bug report form.

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