An airport transit visa is a specific visa to land and transit through a third country.

No matter how long the transit time is ( 1 hour -12 hours ) if you need an airport transit visa then you must get one.

If you do not you will be deported back to your original country.

You should NOT be able to leave your original destination as the airlines check that you have all the relevant visas.

There is great deal of confusion as to exactly what you can or cannot do with the visa.

The explanation is very simple.

You cannot pass through Immigration control of the country .

Therefore you cannot enter the country.

You are allowed only to go from the arrivals terminal to the relevant departure terminal.

That is all that you can do