How to use the online alarm clock
One in the morning is the hour Britain loses once a year. On the last Sunday in March the clocks jump forward at 1 am, straight to 2 am, so the sixty minutes listed on this page simply do not happen that night. Anything set inside them will not fire, and no software can conjure the missing hour back.
On ordinary nights this is deep in the overnight stretch, and most of the people setting an alarm here are already awake. Radio 4 has handed over to the World Service for the night, the motorway roadworks crews are working under floodlights, and the presses that print the morning papers are running towards their distribution deadline.
It is also the hour that suits a call to the far side of the world without waking anyone up at their end. One in the morning in Britain is a perfectly civilised part of the working day in Sydney or Auckland, which makes it a common slot for families and businesses split across that distance. As with every alarm on the site, it depends on the tab staying open and the device staying awake, which at this hour is worth checking twice.