Wendy's typically starts serving lunch around 10:30 a.m. This timing can vary slightly depending on the location, with some places starting as early as 10:00 a.m., especially those that overlap breakfast and lunch service. Lunch generally continues until late evening or midnight, depending on the location's hours. It's recommended to check with your local Wendy's for precise lunch start times, but 10:30 a.m. is the standard start time for lunch at most Wendy's locations.