Re: [appengine-java] Re: Time zones implementation is broken in Java AppEngine
Issue 2330 - still nothing is done about this. On Tue, Oct 27, 2009 at 6:55 PM, Jason (Google) apija...@google.com wrote: At the very least, the local and production environments should have identical behavior, and I agree that App Engine should not be returning GMT for well-established time zones. Please file a new issue in the tracker: http://code.google.com/p/googleappengine/issues/list - Jason On Sat, Oct 24, 2009 at 10:14 AM, Alexander Kolesnikov otry.it...@gmail.com wrote: I have just found that, while everything works fine locally, the real AppEngine returns GMT for most time zones. I wonder if this is going to be fixed. Below see the local output and then the one I am having after uploading the app. Thanks, Alex LOCAL: Asia/Aden3false0Arabia Standard Time Asia/Almaty6false0Alma-Ata Time Asia/Amman3true1Eastern European Time Asia/Anadyr12false1Anadyr Time Asia/Aqtau5false0Aqtau Time Asia/Aqtobe5false0Aqtobe Time Asia/Ashgabat5false0Turkmenistan Time Asia/Ashkhabad5false0Turkmenistan Time Asia/Baghdad3false0Arabia Standard Time Asia/Bahrain3false0Arabia Standard Time Asia/Baku5true1Azerbaijan Time Asia/Bangkok7false0Indochina Time ONLINE: Asia/Aden3false0Arabia Standard Time Asia/Almaty0false0Greenwich Mean Time Asia/Amman0false0Greenwich Mean Time Asia/Anadyr0false0Greenwich Mean Time Asia/Aqtau0false0Greenwich Mean Time Asia/Aqtobe0false0Greenwich Mean Time Asia/Ashgabat0false0Greenwich Mean Time Asia/Ashkhabad0false0Greenwich Mean Time Asia/Baghdad0false0Greenwich Mean Time Asia/Bahrain0false0Greenwich Mean Time Asia/Baku5true1Azerbaijan Time Asia/Bangkok0false0Greenwich Mean Time --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.comgoogle-appengine-java%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~--~~~~--~~--~--~--- -- You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: Time zones implementation is broken in Java AppEngine
At the very least, the local and production environments should have identical behavior, and I agree that App Engine should not be returning GMT for well-established time zones. Please file a new issue in the tracker: http://code.google.com/p/googleappengine/issues/list - Jason On Sat, Oct 24, 2009 at 10:14 AM, Alexander Kolesnikov otry.it...@gmail.com wrote: I have just found that, while everything works fine locally, the real AppEngine returns GMT for most time zones. I wonder if this is going to be fixed. Below see the local output and then the one I am having after uploading the app. Thanks, Alex LOCAL: Asia/Aden3false0Arabia Standard Time Asia/Almaty6false0Alma-Ata Time Asia/Amman3true1Eastern European Time Asia/Anadyr12false1Anadyr Time Asia/Aqtau5false0Aqtau Time Asia/Aqtobe5false0Aqtobe Time Asia/Ashgabat5false0Turkmenistan Time Asia/Ashkhabad5false0Turkmenistan Time Asia/Baghdad3false0Arabia Standard Time Asia/Bahrain3false0Arabia Standard Time Asia/Baku5true1Azerbaijan Time Asia/Bangkok7false0Indochina Time ONLINE: Asia/Aden3false0Arabia Standard Time Asia/Almaty0false0Greenwich Mean Time Asia/Amman0false0Greenwich Mean Time Asia/Anadyr0false0Greenwich Mean Time Asia/Aqtau0false0Greenwich Mean Time Asia/Aqtobe0false0Greenwich Mean Time Asia/Ashgabat0false0Greenwich Mean Time Asia/Ashkhabad0false0Greenwich Mean Time Asia/Baghdad0false0Greenwich Mean Time Asia/Bahrain0false0Greenwich Mean Time Asia/Baku5true1Azerbaijan Time Asia/Bangkok0false0Greenwich Mean Time --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~--~~~~--~~--~--~---
[appengine-java] Re: Time zones implementation is broken in Java AppEngine
Well, I don't know exactly how you implement your application. In my case, the users select their location by country/city and that location has a time zone ID associated with it. The ID is standard as defined in Java, say Asia/Jakarta is the time zone for Jakarta, Indonesia. As soon as they selected their location (which means the time zone too) I can set this time zone to any Calendar or DateFormat I use in my application and it works great - summer time is taken into account where it exists and so on. This is how it works on my machine where I have a proper Java implementation which knows exactly what Asia/Jakarta zone is. When I upload my application to the AppEngine however, Asia/Jakarta (and most other time zones defined in Java) becomes the same as GMT and all the finely crafted logic goes to hell... So in your case if you want your app to display time properly you need a way to find out where your user is coming from. One way is to find out from their IP address which isn't 100% reliable. Another way is to allow the users to make their choice. I follow the second option. You can see how it works (oh, well, doesn't work for most locations thanks to AppEngine's interpretation of Java) at http://lunarium.co.uk. Alex On Sat, Oct 24, 2009 at 8:29 PM, Rusty Wright rwright.li...@gmail.comwrote: Alex, if I'm in California, USA, and I'm deploying my web application to a server in Greece, and someone in Japan uses my application, which time zone should the web application use, and how should the web server determine which time zone to use? Alexander Kolesnikov wrote: I have just found that, while everything works fine locally, the real AppEngine returns GMT for most time zones. I wonder if this is going to be fixed. Below see the local output and then the one I am having after uploading the app. Thanks, Alex LOCAL: Asia/Aden3false0Arabia Standard Time Asia/Almaty6false0Alma-Ata Time Asia/Amman3true1Eastern European Time Asia/Anadyr12false1Anadyr Time Asia/Aqtau5false0Aqtau Time Asia/Aqtobe5false0Aqtobe Time Asia/Ashgabat5false0Turkmenistan Time Asia/Ashkhabad5false0Turkmenistan Time Asia/Baghdad3false0Arabia Standard Time Asia/Bahrain3false0Arabia Standard Time Asia/Baku5true1Azerbaijan Time Asia/Bangkok7false0Indochina Time ONLINE: Asia/Aden3false0Arabia Standard Time Asia/Almaty0false0Greenwich Mean Time Asia/Amman0false0Greenwich Mean Time Asia/Anadyr0false0Greenwich Mean Time Asia/Aqtau0false0Greenwich Mean Time Asia/Aqtobe0false0Greenwich Mean Time Asia/Ashgabat0false0Greenwich Mean Time Asia/Ashkhabad0false0Greenwich Mean Time Asia/Baghdad0false0Greenwich Mean Time Asia/Bahrain0false0Greenwich Mean Time Asia/Baku5true1Azerbaijan Time Asia/Bangkok0false0Greenwich Mean Time --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google App Engine for Java group. To post to this group, send email to google-appengine-java@googlegroups.com To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en -~--~~~~--~~--~--~---
