The hour after the flat finally goes quiet is the one most people would keep if they could, and it is also the one that vanishes without being noticed. Giving it an end at 11:39 pm and watching the figure fall is a fairer account of it than looking up later and doing the subtraction.
The clock it uses is your own — whatever local time and zone the device is set to. In the Emirates that means Gulf Standard Time, four hours ahead of UTC, year in and year out. Travel with the same laptop and the count follows the new local time once the machine has picked it up.
The Emirates keep Gulf Standard Time, UTC+4, and never move the clocks. Everything about time here follows from that: 11:39 pm in January is the same 11:39 pm 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
What happens once 11:39 pm 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.
Which clock does the countdown use?
Your own. It reads the local time and time zone from the device in front of you, which in the Emirates means Gulf Standard Time, UTC+4. Travel and the count follows whatever the device picks up.
Will it alert me when 11:39 pm arrives?
No. This is a live figure rather than an alarm — nothing sounds, vibrates or notifies at zero. If you need interrupting at 11:39 pm, set an alarm alongside it and use this page as the running total.
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.