Written by Allen Wyatt (last updated March 16, 2019)
This tip applies to Excel 97, 2000, 2002, and 2003
Do you ever need to figure out how many days are left in the current year? Since Excel stores dates as serial numbers—making them easy to subtract—it is easy to put together a formula that will return the number of days left in the year:
=DATE(YEAR(C12),12,31)-C12
This formula assumes that the date you want to analyze is in cell C12. It uses the DATE function to calculate the serial number for the last day of the year (December 31), and then subtracts the serial number for the actual date. The result is the difference—the number of days—between the two dates.
This formula returns a value that is formatted as a date. You will need to format the cell to a regular numeric value instead of a date in order to view the result correctly.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (3051) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Days Left in the Year.
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Need to know what day of the year a certain date is? You can figure it out easily using the formulas in this tip.
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