A minor fast day.
“What’s that?”, you ask? We Jews have two major fast days. The first one you’ve all heard about- Yom Kipur, the Day of Atonement. This is one decreed by the Supreme Being, where we request divine forgiveness for the things that we didn’t quite perform well over the past year. The commandment is to fast from dusk on one day to 40 minutes after day’s end the next day. (Yes, that means at least 25 hours without food or water.)