Appointments at the surgery or the dentist are rarely worth arriving late for, and the useful figure is not the appointment itself but how long is left before you have to set off. Set that in your head as 10:22 am and this page will count down to it, exact to the second, for as long as it stays open.
The figure on this page comes from your own device's clock, checked continuously and recalculated every second against 10:22 am. There is nothing to press and nothing to set up first — the count is already running by the time the page has finished loading, and it keeps going while you are looking at it.
Writing a time as 10:22 am keeps the am or pm attached, which reads naturally in a sentence but is easy to skim past in a long list of similar entries. Writing it as 10:22 is less conversational and considerably harder to misread, which is why schedules and rotas lean that way.
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 10:22 in the 12-hour clock?
That is 10:22 am, or twenty-two minutes past ten in the morning 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 10:22 am 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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