Function: hour()
Usage
hour(<Date>) : Number
The hour function is used to extract the hour component of the specified date parameter.
Examples
When you use static dates, you need to enclose the value with the # symbol. The date should be in the following format - dd/mm/yyyy hh:mm
hour(#15/02/2021 13:45#) => 13
Learn more about how you can get started using the Formula Field.