Day of the Year Calculator
Day of the Year Calculator
Find out exactly which day number of the year a specific date is.
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What is the Day of the Year?
The “Day of the Year” (sometimes incorrectly referred to as the Julian Date in programming) is a number between 1 and 365 (or 366 in a leap year) that represents where a specific date falls within the calendar year. For example, January 1st is Day 1, and December 31st is Day 365.
This metric is highly used in satellite tracking, meteorology, data programming, and corporate accounting.