Hi, just wanted to confirm that for the 30 day extension of TR in Bangkok, that I go to Chaeng Wattana (not MTT). Also what are the hours, and is there a least busy time of day? TIA
TLDR : Answer Summary
To extend a 30-day Tourist Visa (TR) in Bangkok, you should go to the Chaeng Wattana immigration office, not MTT (Mueang Thong Thani). It's recommended to avoid going on Mondays and Fridays and to visit in the morning for a less busy experience. You can also make an appointment in advance to streamline the process.