Riding on horseback took some time but eventually Satoru arrived to Brynmoor Village at about 3am and left the horse in the stables, noticing most lights are out in houses, signifying obvious sleeping residents.
"Guess I'll do some training until morning then. Got nowhere to be anyway."
he left the village and headed out into the forest nearby to train.
Fatigue is describable as optional to Satoru as he's a god, as is sleep and eating. Doing it could only mean he's doing it to kill time or for pleasure, same applies to any god or demi-god.
Training however, as it boosts stats and helps one get stronger and have refined techniques and capabilities, raises their attributes quicker than waiting with age. Zeus, despite never going out and doing anything himself, is still undoubtedly and by far the strongest God to this date with the sole exception of Kratos whose stronger.