Are you looking for teaching opportunities that you can schedule before 3pm? Reach out to an assisted living facility or senior center. Talk to the activities director about starting a chess program.
They are always looking for new activities they can introduce to their residents or members. Some already know how to play chess and will enjoy playing against their peers.
Plan for an hour so you do not exhaust your students. Learning chess can be overwhelming for some so take breaks as needed.
Also if you know of other chess players in the area plan a day for them to come play with the residents or members. Often times residents do not receive many visitors and would love to play with people of all ages.