Minimum time for thr 24 hour visa-feee transit entry

In reality, there is no formal minimum time to become eligible for 24 visa free transit scheme. It is your common sense that you will decide not to choose an option with too short transfer time because you risk to lose your connection. In other words, if you have booked your journey on a single ticket and you do not need to exit the airport, it is advisable to have 2 hours and in case if you need exit the airside, collect your luggage and perform new check-in, in that case everything shorter than 4 hours would be risky. Have a nice journey.