[geeks] DST change costs

[Charles Shannon Hendrix]

Mon, 22 Jan 2007 @ 01:26 -0600, Doug McLaren said:

> On Wed, Jan 17, 2007 at 05:30:27PM -0500, Charles Shannon Hendrix wrote:
> 
> | > Are you sure about that?  If it receives a signal from Colorado, the  
> | > DST info is encoded in that signal with the time.
> | 
> | I know the DST information is encoded, but I didn't know that included
> | the day of the change.
> 
> DST information is included in every single minute -- there's a bit
> that states if DST is currently in effect or not.
> 
> References :
> 
>    http://tf.nist.gov/timefreq/stations/wwvb.htm
>    http://tf.nist.gov/timefreq/stations/wwvbtimecode.htm

Ah, that sounds hopeful then.

> Now, it's entirely possible that your clocks ignore this bit entirely
> and figure out when the DST changeover happens on their own, but that
> sounds a bit silly.

I would never rule out silliness.

> Don't forget that not only your OS needs updating -- in general java
> includes it's own timezone information rather than getting it from the
> OS, so your JVMs will need updating as well.

Good point.

> Either way, I'll bet the overall costs of this change ARE substantial.

True.

-- 
shannon "AT" widomaker.com -- [Well, I have entered the "metallic years." 
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