iPhone Alarm Bug during Daylight Savings Time
Wednesday, 6th October, 2010
This week I discovered an annoying problem with the alarm clock built into the iPhone.
Last night I had the alarm set to 6:50pm, but it went off one hour earlier.
This afternoon I tried setting it for a specified time, and discovered it did not go off at the specified time.
I looked around the Web, and found a discussion about the problem.
There seems to be a bug triggered by daylight savings time taking effect.
One post on a forum suggested setting the timezone to Vladivostok, Russia (GMT +11), but I tried this to no avail.
Another post indicated that the problem occurs with recurring alarms. If the alarm is set to a one-off occurrence, it signals at the correct time. When I tried this, the alarm went off when it was supposed to do so.
Until Apple fixes the bug, users have two options, both of which are non-optimal:
- set recurring alarms to one hour later; or
- set one-off alarms every time.
Hopefully this advice will help those who have been bitten by the bug, or who will eventually be bitten by the bug, with disastrous consequences.