What are my options for extending my 60-day tourist visa in Patong, Thailand?

The user is seeking options for extending their 60-day tourist visa that expires on March 23. They aim to apply for a 30-day extension and possibly a COVID extension afterward. The key questions are about timing: if they apply early, whether the new exit date will be counted 30 days from March 23, from the application date, or from the approval date. Comments clarify that the extension is added to the current stay, and there is an immigration office in Patong for assistance.