How to Convert Time to Decimal Format Converting time to decimal format just involves basic division. There are 24 hours in a day, 60 minutes in an hour and 60 seconds in a minute.

How to convert time values into decimal values in Excel Internally, Excel stores the time as a decimal value. The quickest way to see that time value is to change the format.

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