Bakeries, laundries and the first delivery runs of the day are all working while the rest of the city is dark, and their day is set by fixed times rather than by daylight. If 5:36 am is a start, a stop or a collection slot, the countdown here follows it exactly and needs nothing pressed to keep going.
If 5:36 am has already gone today, the count simply carries on towards tomorrow's occurrence. That rollover happens by itself at the moment the time passes, with nothing to reset and no need to reload, so a page left open overnight is still showing something useful in the morning.
Twelve o'clock is where the 12-hour clock is weakest: 12 am and 12 pm are read the wrong way round often enough to cause real trouble with bookings and deadlines. Writing the same moment as 05:36 removes the problem entirely, because a 24-hour figure only ever points at one instant in the day.
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 05:36 on a 12-hour clock?
The same instant is 5:36 am in writing and twenty-four minutes to six in the morning 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 5:36 am, not a figure worked out when the page first opened.
What happens once 5:36 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.