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Alarming Chromometry in the UK

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  Alarming Chromometry in the UK Dr J R Stockton <reply1600@merlyn.demon.co.uk.invalid> - 2016-03-11 13:05 +0000
    Re: Alarming Chromometry in the UK "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2016-03-11 18:44 -0800
      Re: Alarming Chromometry in the UK Dr J R Stockton <reply1600@merlyn.demon.co.uk.invalid> - 2016-03-17 23:07 +0000

#29922 — Alarming Chromometry in the UK

in **MY** Windows XP SP3 fully updated, recently updated browsers :

Code   new Date(14580e8).toString()   gives

  Chrome 49.0   Tue Mar 15 2016 01:00:00 GMT+0100 (GMT Daylight Time)

  Firefox 45.0  Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)
  MS IE 8               Tue Mar 15 00:00:00 UTC 2016
  Opera 12.18   Tue Mar 15 2016 00:00:00 GMT+0000
  Opera 35.0    Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)
  Safari 5.1.7  Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)

But in my Windows 7, Chrome gives the proper answer.

FYI, 16875*864e5 = 14580e8.

My js-date2.htm#CCD and js-clndr.htm#Ctrls also show that 'Chrome
Version 49.0.2623.87 m' uses US DST rules.

Discovered in astron-1.htm#Anow, on mouseover of the ExoMars launch date
(Monday, 15:31 EKST).

Is it just my system, or do others see it with Chrome in WinXP too?  Are
other EU countries also affected?

-- 
 (c) John Stockton, Surrey, UK.  ¬@merlyn.demon.co.uk   Turnpike v6.05   MIME.
 Merlyn Web Site <                       > - FAQish topics, acronyms, & links.

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#29927

On Friday, March 11, 2016 at 5:46:50 PM UTC-6, Dr J R Stockton wrote:
> in **MY** Windows XP SP3 fully updated, recently updated browsers :
> 
> Code   new Date(14580e8).toString()   gives
> 
>   Chrome 49.0   Tue Mar 15 2016 01:00:00 GMT+0100 (GMT Daylight Time)
> 
>   Firefox 45.0  Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)
>   MS IE 8               Tue Mar 15 00:00:00 UTC 2016
>   Opera 12.18   Tue Mar 15 2016 00:00:00 GMT+0000
>   Opera 35.0    Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)
>   Safari 5.1.7  Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)
> 
> But in my Windows 7, Chrome gives the proper answer.
> 
> FYI, 16875*864e5 = 14580e8.
> 
> My js-date2.htm#CCD and js-clndr.htm#Ctrls also show that 'Chrome
> Version 49.0.2623.87 m' uses US DST rules.
> 
> Discovered in astron-1.htm#Anow, on mouseover of the ExoMars launch date
> (Monday, 15:31 EKST).
> 
> Is it just my system, or do others see it with Chrome in WinXP too?  Are
> other EU countries also affected?

Given that Windows XP is no longer supported by Microsoft [1] and that ~13%? [2] of people use Windows XP. Does it practically matter?

[1] <https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support>
[2] <http://gs.statcounter.com/#desktop-os-ww-weekly-201511-201603>

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#30043

In comp.lang.javascript message <2bcfcbf0-7ac5-45e6-b58e-bac9356d604a@go
oglegroups.com>, Fri, 11 Mar 2016 18:44:04, "Michael Haufe (TNO)"
<tno@thenewobjective.com> posted:

>On Friday, March 11, 2016 at 5:46:50 PM UTC-6, Dr J R Stockton wrote:
>> in **MY** Windows XP SP3 fully updated, recently updated browsers :
>>
>> Code   new Date(14580e8).toString()   gives
>>
>>   Chrome 49.0   Tue Mar 15 2016 01:00:00 GMT+0100 (GMT Daylight Time)
>>
>>   Firefox 45.0  Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)
>>   MS IE 8               Tue Mar 15 00:00:00 UTC 2016
>>   Opera 12.18   Tue Mar 15 2016 00:00:00 GMT+0000
>>   Opera 35.0    Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)
>>   Safari 5.1.7  Tue Mar 15 2016 00:00:00 GMT+0000 (GMT Standard Time)
>>
>> But in my Windows 7, Chrome gives the proper answer.
>>
>> FYI, 16875*864e5 = 14580e8.
>>
>> My js-date2.htm#CCD and js-clndr.htm#Ctrls also show that 'Chrome
>> Version 49.0.2623.87 m' uses US DST rules.
>>
>> Discovered in astron-1.htm#Anow, on mouseover of the ExoMars launch date
>> (Monday, 15:31 EKST).
>>
>> Is it just my system, or do others see it with Chrome in WinXP too?  Are
>> other EU countries also affected?
>
>Given that Windows XP is no longer supported by Microsoft [1] and that
>~13%? [2] of people use Windows XP. Does it practically matter?
>
>[1] <https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support>
>[2] <http://gs.statcounter.com/#desktop-os-ww-weekly-201511-201603>


Well, it indicates that someone, presumably at "Chrome", whose work is
insufficiently checked, cannot tell the difference between the UK and
the US.  That's worth knowing.

I wrote that I had found the fault in one Windows XP machine in one
browser in one country, and not in other XP browsers or in Windows 7
Chrome.  Perhaps it occurs in Chrome-type non-Windows systems as well
... .



Test : new Date(864e5*(365*46+87)).toString()

Clearly UTC midnight on some day about now - in fact at the end of this
very St Patrick's Day, UK & IR time - value given to me in the UK is
"Fri Mar 18 2016 01:00:00 GMT+0100 (GMT Daylight Time)".

Various Websites, my own in-limbo one included, take an exact instant as
date (e.g. the date and time of a Soyuz launch, in GFT or EKST) and
present it as a reader's local time.  If an event occurring at, say,
15:00 UTC is so reported, we will receive it as saying 16:00 - and
anyone reading that at 15:05 GMT may become inappropriately panic-
stricken as to how late it is.

A certain well-known UK radio station told me, at 06:00 today, that it
was 08:00 ... .

-- 
 (c) John Stockton, Surrey, UK.  ¬@merlyn.demon.co.uk   Turnpike v6.05   MIME.
 Merlyn Web Site <                       > - FAQish topics, acronyms, & links.

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