Examples:

This statement is true from noon to 1:00 p.m: timerange(12, 13)

This statement is true noon to 12:59 p.m. GMT: timerange(12, "GMT")

This statement is true from 9:00 a.m. to 5:00 p.m: timerange(9, 17)

This statement is true between midnight and 30 seconds past midnight: timerange(0, 0, 0, 0, 0, 30)