Question on Tune Up Timing

https://shaneimdf023.swiftnestly.com/posts/fall-ac-care-in-north-fort-worth-from-the-comfort-experts-team-to-prevent-spring-ac-repair

Question on Tune Up Timing Does anyone know if spring or fall is better for a tune-up? Not sure when it makes the most sense for an older system in Summerfields, since the AC works hardest in summer but the furnace matters in winter