[Mono-dev] Possible issue in timzoneinfo class with mono

[nikhil sehgal]

Thanks ....

On Jan 31, 2017 6:37 PM, "Marek Safar" <marek.safar at gmail.com> wrote:

> Hi Nikhil,
>
>
>> I have raised two bugs(51794
>> <https://bugzilla.xamarin.com/show_bug.cgi?id=51794>) & (51795)
>> <https://bugzilla.xamarin.com/show_bug.cgi?id=51795>for the same .I
>> haven't got any response .Please Help .
>>
>
> Thanks for doing that. We have long term plans to replace TimeZoneInfo
> with CoreRT implementation
> which should also resolve your issues but if you need something short term
> the best is to try to fix it
> yourself and send us PR.
>
> Marek
>
>
> On Thu, Jan 26, 2017 at 6:33 PM, Marek Safar <marek.safar at gmail.com>
>> wrote:
>>
>>> Hello,
>>>
>>> Could you please fill a bug report with steps how to reproduce it at
>>> http://bugzilla.xamarin.com/
>>>
>>> Thank you
>>> Marek
>>>
>>> On Thu, Jan 26, 2017 at 1:03 AM, nikhil sehgal <nikhil.jiet at gmail.com>
>>> wrote:
>>>
>>>> *Currently we have 2 issues while implementing TimeZoneInfo class in
>>>> MONO.*
>>>>
>>>> 1.       While fetching the currenttimezone using “TimeZoneInfo.Local”
>>>> we are getting the value of “DisplayName” and “ID” as *Local* in
>>>> Linux, while it is giving correct values in Windows implementation.
>>>>
>>>>
>>>> [image: Inline image 1]
>>>>
>>>>
>>>> 1.
>>>>
>>>>
>>>>
>>>> TimeZoneInfo TZI_Local = TimeZoneInfo.Local;
>>>>
>>>>               string DisplayName = TZI_Local.DisplayName;
>>>>
>>>>               string Id = TZI_Local.Id;
>>>>
>>>> Console.WriteLine("Display Name : " + DisplayName);
>>>>
>>>>               Console.WriteLine("ID : " + Id);
>>>>
>>>>
>>>>
>>>> However when we fetch out all the TimeZone data we can have the value
>>>> for “DisplayName” and “ID” in Linux but that too is different from that of
>>>> Windows OS.
>>>>
>>>> System.Collections.ObjectModel.ReadOnlyCollection<TimeZoneInfo> tz;
>>>>
>>>>               tz = TimeZoneInfo.GetSystemTimeZones();
>>>>
>>>>               foreach (TimeZoneInfo timeZone in tz)
>>>>
>>>>               {
>>>>
>>>>                      string DisplayName = timeZone.DisplayName;
>>>>
>>>>                      string Id = timeZone.Id;
>>>>
>>>> Console.WriteLine("Display Name : " + DisplayName);
>>>>
>>>>                      Console.WriteLine("ID : " + Id);
>>>>
>>>> }
>>>>
>>>>
>>>>
>>>> *Output in Linux*
>>>>
>>>> DisplayName : Asia/Tehran
>>>>
>>>> ID : Asia/Tehran
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 2.       When we look into Adjustment Rules (TimeZoneInfo.
>>>> AdjustmentRule) for the calculation of DSTDate and STDDate again this
>>>> class returns *-1* for “Week” and “DayofWeek”. Also the other values
>>>> e.g. “Day”, ”Hour”, ”Minute” and “Second” are not same in Linux and Windows.
>>>>
>>>>
>>>>
>>>> TimeZoneInfo TZI_Local = TimeZoneInfo.Local;
>>>>
>>>> TimeZoneInfo.AdjustmentRule[] ar = TZI_Local.GetAdjustmentRules();
>>>>
>>>> foreach (TimeZoneInfo.AdjustmentRule tzi_ar in ar)
>>>>
>>>> {
>>>>
>>>> Console.WriteLine("DaylightTransitionEnd.Day : " +
>>>> tzi_ar.DaylightTransitionEnd.Day.ToString());
>>>>
>>>>               Console.WriteLine("DaylightTransitionEnd.DayOfWeek : " +
>>>> tzi_ar.DaylightTransitionEnd.DayOfWeek.ToString());
>>>>
>>>>               Console.WriteLine("DaylightTransitionEnd.Month : " +
>>>> tzi_ar.DaylightTransitionEnd.Month.ToString());
>>>>
>>>>               Console.WriteLine("DaylightTransitionEnd.Week : " +
>>>> tzi_ar.DaylightTransitionEnd.Week.ToString());
>>>>
>>>> Console.WriteLine("DaylightTransitionEnd.TimeOfDay.Hour : " +
>>>> tzi_ar.DaylightTransitionEnd.TimeOfDay.Hour.ToString());
>>>>
>>>> Console.WriteLine("DaylightTransitionEnd.TimeOfDay.Minute : " +
>>>> tzi_ar.DaylightTransitionEnd.TimeOfDay.Minute.ToString());
>>>>
>>>>        Console.WriteLine("DaylightTransitionEnd.TimeOfDay.Second : " +
>>>> tzi_ar.DaylightTransitionEnd.TimeOfDay.Second.ToString());
>>>>
>>>> }
>>>>
>>>> [image: Inline image 2]
>>>>
>>>> _______________________________________________
>>>> Mono-devel-list mailing list
>>>> Mono-devel-list at lists.dot.net
>>>> http://lists.dot.net/mailman/listinfo/mono-devel-list
>>>>
>>>>
>>>
>>
>>
>> --
>> Thanks & Regards
>> NIkhil Sehgal
>> Mobile No 9711855929
>> Email Id nikhil.jiet at gmail.com
>> Skype ID sehgal.nikhil
>>
>
>
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