Can I show up a day early for my visa appointment in Vientiane?

A user inquired about the possibility of attending a visa appointment in Vientiane one day prior to the scheduled date due to fully booked slots. Comments suggest that it may not be advisable to show up early, as the system is strict and appointments are tied to specific dates. Some responses indicated that it's worth checking without expectations, while others emphasized that names are not on the list until the official appointment day.