Insert the current date and time in a cell - Microsoft Support
You can insert the current date and time in an Excel cell as static values or as dynamic values. A static value is one that doesn’t change when the worksheet is recalculated or opened. A dynamic value is one that is updated each time formulas are recalculated.
TODAY function - Microsoft Support
This article describes the formula syntax and usage of the TODAY function in Microsoft Excel. Description. The TODAY function returns the serial number of the current date. The serial number is the date-time code used by Excel for date and time calculations.
Calculate the difference between two dates - Microsoft Support
As you saw above, the DATEDIF function calculates the difference between a start date and an end date. However, instead of typing specific dates, you can also use the TODAY() function inside the formula. When you use the TODAY() function, …
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.
Add or subtract dates - Microsoft Support
You can add or subtract a number of days to or from a date by using a simple formula, or you can use worksheet functions that are designed to work specifically with dates in Excel.
NOW function - Microsoft Support
The NOW function is useful when you need to display the current date and time on a worksheet or calculate a value based on the current date and time, and have that value updated each time you open the worksheet.
DATE function - Microsoft Support
You can insert the current date and time in a cell, or you can insert a date that gets updated. You can also fill data automatically in worksheet cells. Change the date format
DATEVALUE function - Microsoft Support
2008年1月1日 · The DATEVALUE function converts a date that is stored as text to a serial number that Excel recognizes as a date. For example, the formula =DATEVALUE("1/1/2008") returns 39448, the serial number of the date 1/1/2008.
Format a date the way you want - Microsoft Support
If you don’t like the default date format, you can pick a different one in Excel, like February 2, 2012 or 2/2/12. You can also create your own custom format in Excel.
Insert the date in a footer in Excel - Microsoft Support
To add the current date at the time of printing to the bottom of every printed page, simply insert the date in the worksheet footer. Similarly, you can also add the date to the top of every printed page.