A common rule for epoxy: every 18°F (10°C) warmer roughly halves cure time, and every 18°F colder roughly doubles it. Use this to plan, not to replace your label.
Labels usually list a demold/tack-free time (12–24 h for coating resin, 24–72 h for deep pour) and a full cure (around 7 days) before heavy use or heat. Cold garages in Midwest winters are the #1 cause of "sticky resin" posts in hobby forums. Keep the space at 70–80°F during the first 24 hours.