If you need to do anything at immigration, you better go now or tomorrow!!
It's going to be packed this Wednesday and Tuesday next week as those are both days straddling a 5 day closure of immigration.
Immigration is closed Thursday, Friday and Monday the 13th, 14th and 17th for Songkran!
Take this as your warning/reminder!!
TLDR : Answer Summary
The post highlights that the Thai immigration office will be closed for three days over the Songkran holiday (Thursday, Friday, and Monday the 13th, 14th, and 17th). It is advised that anyone needing to do immigration-related tasks should visit the office before these closure dates, specifically on Tuesday or Wednesday prior to the holiday, as it will be very busy.