CODEWITHSUNDEEP
iosiphonetimezone
Aleksey Potapov
Aleksey Potapov

Reputation: 3783

iPhone issue with time zone

In .plist file there's a field:

plist

I do read it in a simple dictionary. Everything's okay, but on the client side, he says the time difference is -3 hours (i.e. he sees Dec 31, 2013, 10:30 PM)

I think, I should archive the project with his region settings, right?

UPD

self.customFormatter = [NSDateFormatter new];

[self.customFormatter setDateFormat:@"hh:mm a"];

then I convert to string using [self.customFormatter stringFromDate:date]

And I think - I should look in .plist file and change the 

<date>2014-01-01T01:30:00Z</date>

into

<date>2014-01-01T01:30:00-3</date> // I see Dec 2013, 10:30 PM; client sees Jan 2014, 1:30 AM

right?

Upvotes: 0

Views: 319

Answers (1)

Martin R
Martin R

Reputation: 539815

The date is stored in the property list as GMT time. Your timezone is "GMT+2", therefore "January 1, 2014 1:30:00 AM" is archived as

<plist version="1.0">
<dict>
    <key>time</key>
    <date>2014-01-01T23:30:00Z</date>
</dict>
</plist>

So there is no problem with the plist archive, it is independent of any timezone/locale settings ("Z" = "Zulu time" = GMT).

It is only the property list editor in Xcode, which displays the date according to your timezone and locale.

When you read the value into an NSDate object, it represents exactly this point of time. To present the value to the user, you have to use a NSDateFormatter, which converts the NSDate to an NSString representing this date/time according to the user's time zone.

Upvotes: 3

Related Questions