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Subject: Re: alarm

Re: alarm

From: Jonathan Gordon <>
Date: Sun, 17 Sep 2006 23:11:57 +1000

On 17/09/06, Paul Louden <> wrote:
> Oh please. A PC clock is going to be accurate enough for you to set it to
> wake up in the morning. It's not going to drift enough to make you late for
> work overnight, and neither is the clock on your MP3 player. It's not that
> thard to glance at it before setting the alarm, just to make sure it's
> accurate.
> As for the headphones thing, I can attest for having fallen asleep many
> times both with earbuds and "portable" headphones (Sennheiser PX100s).
> Though my problem is that if I fall asleep while listening to *any* noise,
> noise won't wake me. Unrelated to this though.
> I think it might be a good idea to abstract the alarm concept just a little
> bit more, so that on non-RTC targets you could say "X hours and X minutes
> from now" so that even without an actual clock you could still set a
> moderately reliable alarm. As long as it hits within 10 minutes of the mark,
> you'd be fine (just always set it 10 minutes earlier than necessary,
> assuming that horrible a degree of accuracy, you can live without that last
> 20 minutes of sleep if it happens to slide in the wrong direction, right?)

This is a good idea. and could even be done by getting the user to
input the current time and requested time, instead of asking for
hours:min before waking up (imo less anoying for the user, definatly
less error-prone anyway)
> On 9/17/06, Stephan Seitz <> wrote:
> >
> On Sun, Sep 17, 2006 at 10:28:29PM +1000, Jonathan Gordon wrote:
> >and as for a reliable RTC.. its proably as reliable as your PC one...
> That's why my PC always uses NTP to adjust the clock. I would not trust a
> single PC clock without NTP connections. Not for „critical" operations
> like waking up in the morning to get the bus.
> Shade and sweet water!
> Stephan
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Received on 2006-09-17

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