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Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale

From Joao Rodrigues <groups_jr-1@yahoo.com>
Newsgroups comp.lang.javascript
Subject Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale
Date 2018-01-07 13:07 -0200
Organization Aioe.org NNTP Server
Message-ID <p2td2l$1qgt$1@gioia.aioe.org> (permalink)
References <9acafc2f-1bc7-442f-adb7-ee34368545a8@googlegroups.com> <p2qodd$1rd5$1@gioia.aioe.org> <49e9404e-ae0e-4e2c-ab90-bb1afd2b5409@googlegroups.com>

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On 06/01/2018 17:18, Dr J R Stockton wrote:
> On Saturday, January 6, 2018 at 3:02:17 PM UTC, Joao Rodrigues wrote:
>> On 31/12/2017 15:57, Dr J R Stockton wrote:
>>> All of my PCs are set, everywhere that I have found, to
>>> use UK, English, and ISO 8601, including the 24-hour clock.
>>> ...
> 
>> You may use .toLocaleTimeString() with the new locales and options
>> arguments [1]:
>>
>> var date = new Date();
>> var options = {
>>     year: 'numeric', month: 'numeric', day: 'numeric',
>>     hour: 'numeric', minute: 'numeric', second: 'numeric',
>>     hour12: false,
>>     timeZone: 'GMT' // London - UK
>> };
>>
>> console.log(date.toLocaleTimeString('en-GB', options));
>> // 06/01/2018, 14:57:25
> 
> 
> toLocaleTimeString SHOULD NOT give the _date_, so either the spec or the implementation is WRONG.

The Date.prototype.toLocaleTimeString method indeed returns a time as a 
string value (implementation-dependent) in the current time zone that is 
appropriate to the host environment's current locale or a specified locale.

Modern browsers implement the Date.prototype.toLocaleTimeString method 
as specified in the ECMA-402 Internationalization API.

In the example above, the locales parameter was specified as 'en-GB' and 
the options parameter was used to customise the returning string. I 
apologise for adding the date portion in the formatting options as this 
was misleading to you, however I only did that to show what can be done 
with that parameter.


> 
>> Or use the Intl object from the ECMAScript Internationalization API [2]
>> directly:
>>
>> console.log(new Intl.DateTimeFormat('en-GB', options).format(date));
> 
> It can give the same, but that format is not ISO8601:2004 (which, according to Wikipedia, is the latest).  Date field order wrong, date separator wrong. date/time separator wrong.

As I said above, I used the options parameter to format the returning 
string as "date, time", but I recognise that was not a good idea given I 
was using the toLocaleTimeString() method. :-(


>  The method appears unknown to IE11 in Win7.

As of IE 11 in standards document mode, toLocaleTimeString() uses 
Intl.DateTimeFormat internally to format the time, which adds support 
for the locales and options arguments:
<https://docs.microsoft.com/en-us/scripting/javascript/reference/tolocaletimestring-method-date-javascript>

But it seems to me that IE 11 doesn't recognise some values for the 
options parameter such as "GMT" for timeZone. So I have rewritten the 
the example as below to work in IE 11 under Win 10:

var date = new Date();
var options = {
   hour: '2-digit',
   minute: '2-digit',
   second: '2-digit',
   hour12: false
};
document.write('<p>' + date.toLocaleTimeString('en-GB', options) + '</p>');

> 
> Also, timeZone is a terminological ineptitude; a Time Zone is defined as the set of places which, in local winter, have the same offset from GMT/UTC.
> 

ECMAScript implementations must recognize at least "UTC" for timeZone in 
the options parameter. The default is the runtime's default time zone. 
Implementations may also recognize the time zone names of the IANA time 
zone database, such as "Asia/Shanghai", "Asia/Kolkata", "America/New_York".
<https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleTimeString>

-- 
Joao Rodrigues

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new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2017-12-31 09:57 -0800
  Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-12-31 20:48 +0100
    Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale JJ <jj4public@vfemail.net> - 2018-01-02 04:41 +0700
      Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-01 23:37 +0100
      Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-03 02:25 +0100
        Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-03 12:55 +0100
        Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-04 04:02 -0800
          Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Martin Honnen <martin.honnen@gmx.de> - 2018-01-04 13:30 +0100
          Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-04 16:48 +0100
  Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Joao Rodrigues <groups_jr-1@yahoo.com> - 2018-01-06 13:02 -0200
    Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-06 11:18 -0800
      Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Joao Rodrigues <groups_jr-1@yahoo.com> - 2018-01-07 13:07 -0200
        Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-07 12:19 -0800
          Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-08 11:43 +0000
            Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-08 13:26 +0100
              Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-08 16:36 +0000
            Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-08 06:09 -0800
              Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-08 16:33 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-08 18:58 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-08 19:33 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-08 20:26 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-08 22:10 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-09 02:55 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-09 09:36 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-09 02:10 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-09 03:35 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Andrew Poulos <ap_prog@hotmail.com> - 2018-01-09 15:51 +1100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-09 13:17 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-09 14:44 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-09 14:13 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Andrew Poulos <ap_prog@hotmail.com> - 2018-01-10 17:28 +1100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-10 21:01 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-10 21:00 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-09 13:19 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-20 08:43 -0800
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-21 15:09 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-21 17:25 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-21 16:41 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-21 19:15 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-21 18:56 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-21 21:58 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-21 23:03 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-22 10:41 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Joao Rodrigues <groups_jr-1@yahoo.com> - 2018-01-22 11:17 -0200
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-22 14:23 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-23 03:50 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-23 04:41 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-23 08:55 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-23 14:44 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-23 20:04 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-23 23:10 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale John G Harris <niam@jghnorth.org.uk.invalid> - 2018-01-23 08:44 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-23 03:24 -0800
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2018-01-23 13:27 -0800
                Zulu time (was: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-24 00:44 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Joao Rodrigues <groups_jr-1@yahoo.com> - 2018-01-24 01:37 -0200
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-24 04:57 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-24 04:10 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Joao Rodrigues <groups_jr-1@yahoo.com> - 2018-01-24 10:19 -0200
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-25 08:20 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale John G Harris <niam@jghnorth.org.uk.invalid> - 2018-01-25 10:26 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-25 14:26 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Andrew Poulos <ap_prog@hotmail.com> - 2018-01-26 15:42 +1100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-26 11:19 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Andrew Poulos <ap_prog@hotmail.com> - 2018-01-27 07:16 +1100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-26 23:22 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Andrew Poulos <ap_prog@hotmail.com> - 2018-01-27 10:33 +1100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-27 11:30 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Andrew Poulos <ap_prog@hotmail.com> - 2018-01-28 07:38 +1100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-27 23:47 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Andrew Poulos <ap_prog@hotmail.com> - 2018-01-28 10:07 +1100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Mark-" <nospam@mapson.xyz> - 2018-01-28 01:14 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-28 05:25 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Andrew Poulos <ap_prog@hotmail.com> - 2018-01-28 16:07 +1100
                [OT] Fallacies (was: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-01-28 07:18 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale John G Harris <niam@jghnorth.org.uk.invalid> - 2018-01-24 13:51 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Joao Rodrigues <groups_jr-1@yahoo.com> - 2018-01-24 17:13 -0200
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-23 03:00 -0800
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-23 14:14 +0000
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2018-01-23 15:44 +0100
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-23 04:24 -0800
                Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Jon Ribbens <jon+usenet@unequivocal.eu> - 2018-01-23 14:29 +0000
  Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-23 03:19 -0800
  Re: new Date().toLocaleTimeString() sponned in Fall Creators Update. UL locale Dr J R Stockton <J.R.Stockton@physics.org> - 2018-01-25 13:33 -0800

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