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 10:45 pm and watching the figure fall is a fairer account of it than looking up later and doing the subtraction.
Accuracy comes from the device rather than from the page, so a machine whose clock has drifted will produce a countdown that drifts with it. Most phones and laptops sync automatically over the network and stay within a second, but it is worth a glance if the figure ever looks wrong.
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 22:45 removes the problem entirely, because a 24-hour figure only ever points at one instant in the day.
Common questions
What happens once 10:45 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 10:45 pm arrives?
No. This is a live figure rather than an alarm — nothing sounds, vibrates or notifies at zero. If you need interrupting at 10:45 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.