##### Using the HOUR function:

The arguments for the HOUR function are:

Argument | Required? | Description |
---|---|---|

serial_number | Required | The time that contains the hour you want to find. Times may be entered as text strings within quotation marks (for example, "7:30 AM"), as decimal numbers (for example, 0.3125, which represents 7:30 AM), or as results of other formulas or functions (for example, TIMEVALUE("7:30 AM")). |