Days Since January 20th 2025 In Excel. If you want to calculate the number of days since may 1, 2024, you can use the formula: In the example shown, the formula in d6 is:

When working with dates in microsoft excel, a common task is to calculate the difference between two dates. See how to find a date that is 90 days from date or 30 days after date, and how to count days from date.