Online timer for 159 seconds
You have started the countdown for a second time while the car’s windscreen warms after an overnight frost. These 159 seconds give the heater another brief spell to loosen the remaining icy patches while you clear loose frost from the side windows. The glass may look nearly ready, but frozen areas around the wipers can take longer than the centre.
A second pass makes it easy to compare the windscreen with its condition at the previous signal. Let the new countdown run separately instead of trying to remember how long the heater has been on altogether. If the browser page closes or the device sleeps, the signal may not sound, leaving you beside the car without a clear end to this warming spell.
With the windscreen warming beside a busy British street, passing traffic, an idling engine and the heater fan can mask a quiet alert. Keeping the phone inside a coat pocket may muffle it further, while audio routed to connected earbuds may be missed when you are outside the car. A clearly audible tone and a visible screen make the end easier to notice without relying on silence around you.
Common questions
Why might the windscreen need longer than the same interval on another frosty morning?
Thicker frost, colder glass and a weaker airflow can all slow the thaw. A light coating on a milder British morning may clear before the signal instead.
What if the windscreen clears before the second countdown finishes?
You do not need to keep warming glass that is already fully clear. If frost remains when the signal sounds, another short check is more useful than assuming every section has thawed.
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