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.

This tutorial will show you how to change the number of Decimal places in Microsoft Excel using any one of these 3 methods.