1] Add days directly If the expiry period is defined in days, you can calculate the expiry date by simply adding the number of days to the starting date using the + operator.

How can I add or subtract months from a date using the EDATE function in Excel? To use the EDATE function you will need the starting date and the number of months to add or subtract.

Understanding Excel's date and time serial numbers can help in calculating differences between dates, adding days, adjusting times, and more.

How to add a monthly balance in Excel As you’ve seen, a daily balance requires only a simple IF () function to match dates before returning the balance for each day.

Bookkeepers, project managers, HR departments and more use the Excel Date & Time functions WEEKNUM, ISOWEEKNUM, WORKDAY, WORKDAY.INTL to calculate time. Here's how.