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Count Days Between Two Dates in Excel

Functions to Count Days Between Two Dates in Excel

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Listed here are Excel functions that can be used to count the number of business days between two dates or find the start and end dates of a project given a set number of business days. These functions can be very useful for planning and when writing proposals to determine the time frame of a project. Several of the functions will automatically removes weekend days from the total. Specific holidays can be omitted as well.

Excel NETWORKDAYS Function

Excel Date Function Tutorials
Excel Date Function Tutorials

The NETWORKDAYS function can be used to calculate the number of business days between the start date and end date of a project. This tutorial includes an example of calculating the number of business days between two dates using the NETWORKDAYS function in Excel.

Excel 2010 NETWORKDAYS.INTL Function

Excel Date Function Tutorials
Excel Date Function Tutorials
Similar to the NETWORKDAYS function above, except that the NETWORKDAYS.INTL function can be used for those locations where the weekend days do not fall on Saturday and Sunday. Single day weekends are accommodated as well. This function is only available in Excel 2010.

Excel DATEDIF Function

Excel Date Function Tutorials
Excel Date Function Tutorials
The DATEDIF function can be used to calculate the number of days between dates. This tutorial includes a step by step example of using the DATEDIF function in Excel.

Excel WORKDAY Function

Excel Date Function Tutorials
Excel Date Function Tutorials

The WORKDAY function can be used to calculate the end date or start date of a project for a given number of business days. This tutorial includes an example of calculating the end date of a project using the WORKDAY function in Excel.

Excel 2010 WORKDAY.INTL Function

Excel Date Function Tutorials
Excel Date Function Tutorials
Similar to Excel's WORKDAY function above, except that the WORKDAY.INTL function can be used for those locations where the weekend days do not fall on Saturday and Sunday. Single day weekends are accommodated as well. This function is only available in Excel 2010.

Excel EDATE Function

Excel Date Function Tutorials
Excel Date Function Tutorials

The EDATE function can be used to calculate a due date of a project or investment that fall on the same day of the month as the date it was issued.This tutorial includes an example of calculating the due date of a project using the EDATE function in Excel.

Excel EOMONTH Function

Excel Date Function Tutorials
Excel Date Function Tutorials
The EOMONTH function, short for End of Month function can be used to calculate a due date of a project or investment that falls at the end of the month.

Excel DAYS360 Function

Excel Date Function Tutorials
Excel Date Function Tutorials

The Excel DAYS360 Function can be used in accounting systems to calculate the number of days between two dates based on a 360-day year (twelve 30-day months). This tutorial includes an example that calculates the number of days between two dates using the DAYS360 function.

Use the DATE Function to Enter Dates Correctly

Excel Date Function Tutorials
Excel Date Function Tutorials
Although dates can just be entered by typing them into a cell and Excel will usually recognize it as a date, there exists the possibility that the date could be read as a text entry and, therefore, cause problems with calculations. To avoid any such problems use the DATE function to enter dates used in the functions listed on this page.

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