The last hour of a working day is the slowest one, and watching it pass only makes it slower. A live countdown to 4:59 pm at least turns an open-ended stretch into a number that is visibly moving, updating every second whether or not the afternoon feels like it is going anywhere at all.
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.
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 16:59 removes the problem entirely, because a 24-hour figure only ever points at one instant in the day.
Common questions
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 4:59 pm arrives?
No. This is a live figure rather than an alarm — nothing sounds, vibrates or notifies at zero. If you need interrupting at 4:59 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.
What is 16:59 on a 12-hour clock?
The same instant is 4:59 pm in writing and one minutes to five in the evening 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.