How long can I apply for a tourist visa in Thailand?

When applying for a tourist visa in Thailand, the embassy's examination time is five to eight working days, and the visa can be issued within one week at the earliest. After the visa is issued, it is valid for three months and can stay for 30 days. For a single round trip, the applicant must go back and forth within the validity period, that is, both departure and return are within the validity period. So if you want to stay for a month, you can apply one and a half months or two months in advance at the earliest. /zd/xx