How to use the online alarm clock
Ten at night is closing time for a large part of the retail city. Most malls shut their shop doors around now on a weekday, holding the restaurants and cinemas open later, so a ten o'clock alarm is frequently the reminder that an errand has to happen tonight or wait until tomorrow morning.
It is also the changeover for a lot of shift work. Night crews in hospitals, hotels, ports and control rooms are coming on around now, which means an alarm at this hour is as likely to be a wake-up as a wind-down — the reverse of what the same time means in most of the world.
Anyone with family in Europe tends to use this hour for calls, since ten here is a comfortable early evening in London or Berlin and the working day at the far end is finished. Every minute from 10:00 pm to 10:59 pm has its own page beneath this one.