Day of Year Calculator

In order to find out what day of the year a date is or the date that a day of the year coincides with, enter the required information in the calculator below and press the calculate button.

Below this page, you can also find the answers for frequently asked questions about this subject.
Day of Year Calculator
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  2. e.g 126
  3. e.g 2020
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What is day number?

Day number is the number that indicates which day of the year any date is. Since January 1st is the first day of the year, the day number is 1. Likewise, since January 10 is the 10th day of the year, the day number will be 10.

What day of the year is today?

You can easily calculate the day of the year today with our calculator.

How many days are there in a year?

Normally a year consists of 365 days. Every 4 years becomes a leap year, and a day is added to February in leap years. Therefore, when it comes to a leap year, a year consists of 366 days.