I've got the info: you can apply 3 months before planning to go to Thailand. 1 month before seems a little too late, as sometimes they may take more time. So, probably 2 months ahead is all right
I'm planning to submit the application. We're going to Thailand on March. Do you know if I need to apply, say, "X time before arriving"? Specially, can I apply 2 month before going? Thanks!