Please Note: This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here: Calculating the Day of the Year.
Written by Allen Wyatt (last updated September 15, 2018)
This tip applies to Excel 97, 2000, 2002, and 2003
You've probably seen it on calendars before—some include an indication that "Today is the 123 day of the year with 242 remaining." You can easily calculate the day number of a year, as well as how many are remaining. For instance, let's assume you have a date in cell D27. You could use the following formulas to calculate, respectively, what day of the year it is and how many are still left:
=D27-"12/31/2008" ="12/31/2009"-D27
The reason that the first formula uses a date of 12/31/2008 is so the result will show the actual day number. Using these formulas, the result of 1/1/2009 in cell D27 would result in 1, meaning it is the first day of the year. (This is as it should be.)
Of course, once you enter the formulas, you need to format the cells as regular numbers. (Excel will, by default, try to format the cells as dates.) With the two cells selected, follow these steps:
Figure 1. The Number tab of the Format Cells dialog box.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (2931) 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: Calculating the Day of the Year.
Save Time and Supercharge Excel! Automate virtually any routine task and save yourself hours, days, maybe even weeks. Then, learn how to make Excel do things you thought were simply impossible! Mastering advanced Excel macros has never been easier. Check out Excel 2010 VBA and Macros today!
You may use Excel to track due dates for a variety of purposes. As a due date approaches, you may want that fact drawn to ...
Discover MoreWork in an industry that uses ISO standards when it comes to working with dates? You'll love the formula in this tip ...
Discover MoreGiven a particular week number for a year, you may want to figure out the date of the last day in that week. There is no ...
Discover MoreFREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."
There are currently no comments for this tip. (Be the first to leave your comment—just use the simple form above!)
Got a version of Excel that uses the menu interface (Excel 97, Excel 2000, Excel 2002, or Excel 2003)? This site is for you! If you use a later version of Excel, visit our ExcelTips site focusing on the ribbon interface.
FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."
Copyright © 2024 Sharon Parq Associates, Inc.
Please Note:
This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Excel, click here:
Comments