如何在iOS上获取本地时间 [英] How to get local time on iOS

问题描述

我刚注意到 NSDate * nowDate = [NSDate date]; 给我GMT + 0时间而不是当地时间。所以基本上在我的iPad上是13:00，这段代码的输出是12:00。

I just noticed that NSDate *nowDate = [NSDate date]; gives me GMT+0 Time and not the local time. So basically on my iPad it's 13:00 and the output of this code is 12:00.

如何正确地获得当地时间？

How do I get local time properly?

推荐答案

试一试！

NSDate* sourceDate = [NSDate date];

NSTimeZone* sourceTimeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];
NSTimeZone* destinationTimeZone = [NSTimeZone systemTimeZone];//use `[NSTimeZone localTimeZone]` if your users will be changing time-zones. 

NSInteger sourceGMTOffset = [sourceTimeZone secondsFromGMTForDate:sourceDate];
NSInteger destinationGMTOffset = [destinationTimeZone secondsFromGMTForDate:sourceDate];
NSTimeInterval interval = destinationGMTOffset - sourceGMTOffset;

NSDate* destinationDate = [[[NSDate alloc] initWithTimeInterval:interval sinceDate:sourceDate] autorelease];

它会根据当前系统时区给你时间。

It will give you the time according to the current system timezone.

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