In addition to its basic spreadsheet functions, Microsoft Excel also allows writing formulas to perform functions on existing data. Using a quick equation, you can convert an existing set of time ...

=A1/3600 converts seconds into a decimal fraction of one hour. ... If you or an employee used custom time formats in Excel, you can convert them to decimals simply by changing the format.

If you need to calculate dates in your spreadsheets, Excel uses its own unique system, which it calls Serial Numbers. Every date (month, day, year) and time (hour, minute, and second) has an ...