Chiang Mai immigration will close (stop letting people in) at 4PM now because of the adjusted bank hours. This includes 90-day reporting drive through, as well.
Please don’t show up at 3:45to extend long visa or try for COVID-19 extension. Give yourself an hour for each.
TLDR : Answer Summary
Chiang Mai immigration now closes at 4PM due to adjusted bank hours, affecting all services including 90-day reporting. It's advised to arrive at least an hour before closing for long visa extensions or COVID-19 extensions.