This document discusses optimal posting times for various social media platforms including Facebook, Instagram, Twitter, and LinkedIn. For Facebook, the best times to post are Wednesday at 11am and 1pm. For Instagram, Wednesday at 11am and Friday at 10-11am work best. Twitter sees highest engagement on posts on Wednesday at 9am and Friday at 9am. LinkedIn engagement is strongest when posting on Wednesday between 9-10am and 12pm. Across all platforms, weekday mornings and afternoons generally perform better than evenings and weekends.