Well established or aggressive eaters probably take food at any given time regardless whether it's day or night, I've been feeding mine in the evenings (7pm onwards), and I feel like after 5 weeks Solidus is at a point where he's acclimated to the schedule and knows when his food is coming.
Feeding at night is recommended, but honestly, I'd say figure out what works for you and your snake and go with your gut feeling and whatever feeding schedule you're comfortable with.