I usually eat no later than two hours before bedtime. There’s no science behind that, I just find that it works for me. You might want to try a few different times to figure out what works best for you.
Conversation between researcher Dr Rhonda Patrick, and scientist Ray Cronise - covers a lot of ground - fasting, intermittent fasting, cold/heat exposure. Explains what’s going on physiologically and the benefits accrued. Enjoy!