If/Else condition using specific time ranges

I'm trying to formulate an if/else condition with the following criteria using javaScript:

"Good Morning" if the time is between 5:45 am and 11:59:59 am "Good Afternoon" if the time is between 12:00 pm and 05:59:59 pm "Good Evening" if the time is between 6:00 pm and 5:44:59 am