The last collection from a post box is stamped on the front of it, and missing it by a minute costs a day. If 1:18 pm is that cut-off, the countdown here tells you plainly whether the walk is still worth making, tracking hours, minutes and seconds rather than rounding to something vaguer.
Because the count reads straight from your device's clock, its accuracy rests on that clock being right, time zone included. Phones and computers normally handle this themselves, so in practice the figure here lines up with whatever time the device is already showing elsewhere on screen.
Matching what somebody said against what somebody wrote is easier with all three versions to hand: 1:18 pm for everyday reading, 13:18 for anything printed in railway style, and eighteen minutes past one in the afternoon for whatever was actually spoken down the phone. All three describe precisely the same point in the day, and having them side by side saves a good deal of squinting at a timetable.
Common questions
Is it affected by the clocks changing?
Only in the sense that your device is. When the change between GMT and BST happens at the end of March and October, the device adjusts and the countdown follows it without anything to do here.
What is 13:18 in the 12-hour clock?
That is 1:18 pm, or eighteen minutes past one in the afternoon if you are saying it aloud. From 13:00 onwards, subtracting twelve gives the pm figure — the same moment written three different ways.
Does the number update by itself?
Yes. It recalculates every second from your device's clock, so there is nothing to refresh or restart. Whatever is on screen is the current gap to the target time, not a figure worked out when the page first loaded.
What happens if 1:18 pm has already gone for today?
The count simply carries on towards the next occurrence, which is tomorrow. That rollover happens on its own — the page does not need reloading and there is nothing to reset by hand.
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