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SANS ISC: DST to EST error summary - Internet Security | DShield SANS ISC InfoSec Forums


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DST to EST error summary

We talked about the DST change in our diary http://isc.sans.edu/diary.html?storyid=9898. We have received reports that iphone will not recognize the date change and similar problems with other cellphone companies. It is worth checking whether your phone, computer and other electronic devices automatically switched their date to have no further problems. Do not forget to let us know through our contact form if you encountered problems in this regard.

More information at http://edition.cnn.com/2010/TECH/mobile/11/05/apple.alarm.daylight.savings/

-- Manuel Humberto Santander Peláez | http://twitter.com/manuelsantander | http://manuel.santander.name | msantand at isc dot sans dot org

Manuel Humberto Santander Pelaacuteez

185 Posts
ISC Handler
With my Roger's phones I found if I power them off and back on they get the updated time.
Anonymous
Of all things, my atomic clock didn't change to standard time until Sunday evening sometime.
Anonymous
My iPhone alarm did not go off this morning at 5:00 AM EST - like it use to EVERY weekday morning.
Anonymous
The clock on my iPhone seemed to switch over without incident, but I was not using an alarm.
hacks4pancakes

48 Posts
There was a fairly well-publicized iPhone big affecting recurring alarms. Any *recurring* ('repeat every') alarms created prior to the time change will not function properly. You should delete them all and re-create any you need. Non-recurring alarms are not affected. There will be a fix for this released later this month, as the bug was discovered too late to get the update out in time.
hacks4pancakes
4 Posts
Yes, I read that during the time change in the UK last weekend. Glad my backup night-stand clock was all good. :-)
hacks4pancakes
4 Posts
Yes, I read that during the time change in the UK last weekend. Glad my backup night-stand clock was all good. :-)
hacks4pancakes
4 Posts
Yes, I read that during the time change in the UK last weekend. Glad my backup night-stand clock was all good. :-)
hacks4pancakes
4 Posts
I noticed my iPod Touch switched back an hour back on Nov 1, instead of today.

Most of my problems are with old VCRs and Clocks that implement pre-2007 rules and don't have any mechanism for consumer firmware upgrades.

You'd think getting CST/DST right would be simple, but I guess simple one-day gotchas are the ones most likely to result in errors, especially when the rules keep getting changed arbitrarily.

Mysid

146 Posts
My iPhone-4 worked flawlessly over the change and beyond. However, I did as usual shut down/restart before/after the time change.
Mysid
20 Posts
My Moto Droid (original) and HTC Droid Eris were problem free on each, for the CDT to CST changeover. Also had re-occurring alarms that hit the right civilian clock time without problems. Gotta love Google's small platform Linux....
BezantSoft

14 Posts

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