What should you do if your Immigration appointment is on a weekend in Thailand?

If your Immigration appointment falls on a Saturday or Sunday in Thailand, you can opt to attend the appointment on the preceding Friday or the following Monday. However, attending before the expiry date is recommended to avoid complications. For 90-day reporting, you can go up to 2 weeks early or 1 week late. It's highlighted that appointments for services can be arranged in advance, so it's best not to leave it until the last minute.