Count number of days in year from the given date in Excel
Kutools for Excel
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Generally, a year has 365 days, but four years a leap year, which has 366 days. For quickly finding the given date if a leap year and counting the number of days in the year in Excel, the Kutools for Excelā Calculate days in year feature can help you.
Count days in year
Select a cell that you will place the counted result, then click Kutools > Formula Helper > Math & Trig > Calculate days in year. See screenshot:
In the popping Formulas Helper dialog, go to Date section to click the browse button to choose a cell that you want to count the days of year based on.
Note: The selected cell will be shown as absolute reference in the Date section, you can change it to relative reference for filling the formula to other cells by dragging auto fill handle.
Click Ok, the days of year has been counted.
Remark
In the Date section, you also can directly type in the date that you want to count days of year into the textbox, make sure the date format is m/d/yyyy.
Demo: Count number of days in year from the given date in Excel
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Kutools for Excel
Kutools for Excel offers 300+ advanced features to streamline your work in Excel 2010 ā 2024 and Microsoft 365. The feature above is just one of many time-saving tools included.

