when is the best time of day for a walk?

5 AM for me
I do a 3-1/2 mile jog

3 mile exercise walk before breakfast

When it's raining (during the day, and not heavy rain). I'll always enjoy a nice rainy walk while listening to music

When you are not hungry or sleepy and feel like taking a walk.

Any time. Observing the world on foot , any time is interesting. I like night though, when it's only ghosts.

Morning empty stomach
Evening after dinner