A flight out of Dubai at this hour comes with a chain of earlier times attached: the driver, the bag drop, the gate closing. Every one of them sits while the roads are still empty. If 2:20 am is the moment the front door has to shut behind you, the countdown here tracks it precisely and updates on its own.
Nothing here is stored, sent or remembered. The page works out one number from your device's clock and draws it, and that is the whole of what it does. Closing the tab leaves nothing behind, and there is no history of times you have looked up sitting anywhere afterwards.
The Emirates keep Gulf Standard Time, UTC+4, and never move the clocks. Everything about time here follows from that: 2:20 am in January is the same 2:20 am in July, and the gap to London or Berlin changes twice a year because of what they do, not because of anything happening at this end.
Common questions
Do the clocks change here?
No. The UAE has no daylight saving at all, so the offset stays at UTC+4 in every month. When the gap to Europe or North America shifts, it is their clocks that moved, not yours.
What is 02:20 on a 12-hour clock?
The same instant is 2:20 am in writing and twenty past two at night out loud. Anything from 13:00 onwards loses twelve to give the pm figure, which is the only sum involved in moving between the two.
Does the number update by itself?
Yes. It is recalculated every second from your device's clock, so nothing needs refreshing or restarting. Whatever is on screen is the current gap to 2:20 am, not a figure worked out when the page first opened.
What happens once 2:20 am has passed for today?
The count rolls over and carries on towards the same time tomorrow. That happens on its own at the moment the time passes — the page does not need reloading and there is nothing to reset by hand.