Best Times to Post on Instagram Best times to post on Instagram: Mondays from 10 a.m. to noon. Tuesdays from 9 a.m. to 1 p.m. Wednesdays from 10 a.m. to 1 p.m. Fridays from 9 to 11 a.m. Best days to post on Instagram: Tuesdays and Wednesdays. Worst days to post on Instagram: Sundays. May 8, 2023