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comp.lang.javascript

Alarming Chromometry in the UK

Dr J R Stockton

3/11/2016 1:05:00 PM

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.
2 Answers

Michael Haufe (\"TNO\")

3/12/2016 2:44:00 AM

0

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-s...
[2] <http://gs.statcounter.com/#desktop-os-ww-weekly-201511-...

Dr J R Stockton

3/17/2016 11:08:00 PM

0

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-s...
>[2] <http://gs.statcounter.com/#desktop-os-ww-weekly-201511-...


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.