Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/calcula…
Calculate the difference between two dates - Microsoft Support
Use the DATEDIF function when you want to calculate the difference between two dates. First put a start date in a cell, and an end date in another. Then type a formula like one of the following. Note: If the Start_date is greater than the End_date, the result will be #NUM!.
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/calcula…
Calculate the difference between two times in Excel
There are several ways to calculate the difference between two times. Present the result in the standard time format There are two approaches that you can take to present the results in the standard time format (hours : minutes : seconds). You use the subtraction operator (-) to find the difference between times, and then do either of the ...
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/datedif…
DATEDIF function - Microsoft Support
Excel provides the DATEDIF function in order to support older workbooks from Lotus 1-2-3. The DATEDIF function may calculate incorrect results under certain scenarios.
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/subtrac…
Subtract dates in Excel for Mac - Microsoft Support
You can quickly find the difference between two dates, control the format of the result, and extend the calculation to a list of dates. For example, you can quickly subtract one date from another date, or calculate the duration of items on a project schedule.
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/network…
NETWORKDAYS function - Microsoft Support
Working days exclude weekends and any dates identified in holidays. Use NETWORKDAYS to calculate employee benefits that accrue based on the number of days worked during a specific term.
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/calcula…
Calculate percentages - Microsoft Support
Learn how to use the percentage formula in Excel to find the percentage of a total and the percentage of change between two numbers. Try it now!
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/how-to-…
How to correct a #VALUE! error in the DAYS function
Solution: Check your system’s date and time settings to make sure that they match the format of the dates referred to in the formula. If necessary, update the formula to the correct format. The following example shows different variations of DAYS, where A2 and A7 are invalid dates. Need more help?
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/calcula…
Calculate age - Microsoft Support
The table below shows common methods to do so, using the Date and time functions. To use these examples in Excel, drag to select the data in the table, then right-click the selection and pick Copy.
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/date-an…
Date and time functions (reference) - Microsoft Support
Use date and time functions to create formulas that return serial numbers, display a specific date or time, or that calculate the difference between dates or times.
Global web icon
microsoft.com
https://support.microsoft.com/en-us/office/datedif…
DateDiff Function - Microsoft Support
You can use the DateDiff function to determine how many specified time intervals exist between two dates. For example, you might use DateDiff to calculate the number of days between two dates, or the number of weeks between today and the end of the year.