A Complete Guide to Understanding Visa Slots It can be difficult to navigate the intricacies of visa applications, particularly when it comes to comprehending the idea of visa slots. The time slots that embaaviator hackssies or consulates have set aside for visa interviews are known as visa slots. These timeslots are important for applicants because they dictate when a person can personally make their case for a visa. A restricted number of slots are available at each embassy or consulate, and these slots may change depending on the kind of visa being sought, the volume of applications, & the diplomatic mission's resources.