[time-nuts] DST with TrueTime NTS-100

[Brooke Clarke]

Hi Joseph:

I can guess why they did it like that.  In order to get the day of the week you 
need to be able to correctly calculate leap years (rules for 4, 100 and 400 
years) and in addition need Zeller's congruence to get the DOW.  Guess how I 
know this.

Have Fun,

Brooke Clarke
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com



Joseph Gray wrote:
> I've used several pieces of network hardware that almost got this right. 
> They allowed you to enter start and end dates, but only by calendar date. 
> You couldn't say 2nd Sun or such. That made the feature useless. I wonder 
> why they bothered?
> 
> ----- Original Message ----- 
> From: "Jason Rabel" <jason at extremeoverclocking.com>
> To: "'Discussion of precise time and frequency measurement'" 
> <time-nuts at febo.com>
> Sent: Thursday, April 12, 2007 11:53 AM
> Subject: [time-nuts] DST with TrueTime NTS-100
> 
> 
> 
>>I know this is a little late, but I was impressed at how my old NTS-100
>>handles daylight savings.
>>
>>Instead of them hard-coding dates for the time zones (like so many devices
>>and operating systems do), when you enable DST it gives you the option to
>>choose the starting & ending times...
>>
>>Ex: 2nd Sun in Mar @ 2am --- 1st Sun in Nov @ 2am
>>
>>Kind of made me feel all warm and fuzzy inside.
>>
>>Now why couldn't everyone do something like that? Even if it was an 
>>advanced
>>option or something?
>>
>>
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> 
> 
> 
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