You can have a breakfast and supper. Going without food for 8-12 hours is an option.
Depends on when you stop eating your last meal. Should at least be 12 hours from your last meal. So stop eating at 6pm and start back up after 6am.
Methods vary. My method is called the 18:6. You fast for 18 hours and eat during a 6 hour window.
In essence I usually eat 1 meal a day.
I was a wrestler in my youth, so not eating has never bothered me.
Some people do two days a week, not in a row, where they only eat 500 calories.
Try Dr. Berg on youtube. Some people don’t like him, but I found him pretty informative.
To me I just found it easiest to omit breakfast so my ~16-hour fasting period could include my sleeping time :)
I still have my 2 cups of coffee when I get up, but don’t eat lunch until 11:00 or 12:00. Then dinner at 6:00 or 7:00. Nothing between or after except water.
Once I became accustomed to this schedule I didn’t miss breakfast at all. If I ever have a craving for “breakfast food” (bacon/eggs, etc), I just have it for lunch or dinner.