blocks|key|1264819|text|我发现的最简单的方法是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1264820|NSDate+*someDateInUTC+=+…;
NSTimeInterval+timeZoneSeconds+=+[[NSTimeZone+localTimeZone]+secondsFromGMT];
NSDate+*dateInLocalTimezone+=+[someDateInUTC+dateByAddingTimeInterval:timeZoneSeconds];|code-block|syntax|javascript|1264821|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The easiest method I've found is this:

<pre><code>NSDate *someDateInUTC = …;
NSTimeInterval timeZoneSeconds = [[NSTimeZone localTimeZone] secondsFromGMT];
NSDate *dateInLocalTimezone = [someDateInUTC dateByAddingTimeInterval:timeZoneSeconds];
</code></pre>

blocks|key|1479307|text|如果您想要本地日期和时间。尝试此代码：-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1479308|NSString+*localDate+=+[NSDateFormatter+localizedStringFromDate:[NSDate+date]+dateStyle:NSDateFormatterMediumStyle+timeStyle:NSDateFormatterMediumStyle];|code-block|syntax|javascript|1479309|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you want local Date and time. Try this code:-

<pre><code>NSString *localDate = [NSDateFormatter localizedStringFromDate:[NSDate date] dateStyle:NSDateFormatterMediumStyle timeStyle:NSDateFormatterMediumStyle];
</code></pre>

blocks|key|1264971|text|将UTC日期转换为本地日期|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1264972|-(NSString+*)getLocalDateTimeFromUTC:(NSString+*)strDate
{
++++NSDateFormatter+*dtFormat+=+[[NSDateFormatter+alloc]+init];
++++[dtFormat+setDateFormat:@"yyyy-MM-dd+HH:mm:ss"];
++++[dtFormat+setTimeZone:[NSTimeZone+timeZoneWithAbbreviation:@"UTC"]];
++++NSDate+*aDate+=+[dtFormat+dateFromString:strDate];

++++[dtFormat+setDateFormat:@"yyyy-MM-dd+HH:mm:ss"];
++++[dtFormat+setTimeZone:[NSTimeZone+systemTimeZone]];

++++return+[dtFormat+stringFromDate:aDate];
}|code-block|syntax|javascript|1264973|像这样使用|1264974|NSString+*localDate+=+[self+getLocalDateTimeFromUTC:@"yourUTCDate"];|1264975|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Convert your UTC date to Local Date

<pre><code>-(NSString *)getLocalDateTimeFromUTC:(NSString *)strDate
{
 NSDateFormatter *dtFormat = [[NSDateFormatter alloc] init];
 [dtFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
 [dtFormat setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];
 NSDate *aDate = [dtFormat dateFromString:strDate];

 [dtFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
 [dtFormat setTimeZone:[NSTimeZone systemTimeZone]];

 return [dtFormat stringFromDate:aDate];
}
</code></pre>

Use Like This

<pre><code>NSString *localDate = [self getLocalDateTimeFromUTC:@"yourUTCDate"];
</code></pre>

blocks|key|1479291|text|此处输入是字符串currentUTCTime+(格式为08/30/2012+11:11)将输入时间转换为系统设置的时区时间|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1479292|//UTC+time
NSDateFormatter+*utcDateFormatter+=+[[[NSDateFormatter+alloc]+init]+autorelease];
[utcDateFormatter+setDateFormat:@"MM/dd/yyyy+HH:mm"];
[utcDateFormatter+setTimeZone+:[NSTimeZone+timeZoneForSecondsFromGMT:+0]];

//+utc+format
NSDate+*dateInUTC+=+[utcDateFormatter+dateFromString:+currentUTCTime];

//+offset+second
NSInteger+seconds+=+[[NSTimeZone+systemTimeZone]+secondsFromGMT];

//+format+it+and+send
NSDateFormatter+*localDateFormatter+=+[[[NSDateFormatter+alloc]+init]+autorelease];
[localDateFormatter+setDateFormat:@"MM/dd/yyyy+HH:mm"];
[localDateFormatter+setTimeZone+:[NSTimeZone+timeZoneForSecondsFromGMT:+seconds]];

//+formatted+string
NSString+*localDate+=+[localDateFormatter+stringFromDate:+dateInUTC];
return+localDate;|code-block|syntax|javascript|1479293|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here input is a string currentUTCTime (in format 08/30/2012 11:11) converts input time in GMT to system set zone time

<pre><code>//UTC time
NSDateFormatter *utcDateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[utcDateFormatter setDateFormat:@"MM/dd/yyyy HH:mm"];
[utcDateFormatter setTimeZone :[NSTimeZone timeZoneForSecondsFromGMT: 0]];

// utc format
NSDate *dateInUTC = [utcDateFormatter dateFromString: currentUTCTime];

// offset second
NSInteger seconds = [[NSTimeZone systemTimeZone] secondsFromGMT];

// format it and send
NSDateFormatter *localDateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[localDateFormatter setDateFormat:@"MM/dd/yyyy HH:mm"];
[localDateFormatter setTimeZone :[NSTimeZone timeZoneForSecondsFromGMT: seconds]];

// formatted string
NSString *localDate = [localDateFormatter stringFromDate: dateInUTC];
return localDate;
</code></pre>

blocks|key|1479422|text|//This+is+basic+way+to+get+time+of+any+GMT+time.

NSDateFormatter+*formatter+=+[[NSDateFormatter+alloc]+init];
[formatter+setDateFormat:@"hh:mm+a"];++//+09:30+AM
[formatter+setTimeZone:[NSTimeZone+timeZoneForSecondsFromGMT:1]];+//+For+GMT%2B1
NSString+*time+=+[formatter+stringFromDate:[NSDate+date]];++//+Current+time|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1479423|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>//This is basic way to get time of any GMT time.

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"hh:mm a"]; // 09:30 AM
[formatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:1]]; // For GMT+1
NSString *time = [formatter stringFromDate:[NSDate date]]; // Current time
</code></pre>

blocks|key|1479239|text|从UTC日历到具有适当本地NSTimeZone的日历的Convert+the+date。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1479240|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.apple.com/documentation/Cocoa/Conceptual/DatesAndTimes/Articles/dtTimeZones.html#//apple_ref/doc/uid/20000185|1|http://developer.apple.com/documentation/Cocoa/Conceptual/DatesAndTimes/Articles/dtCalendricalCalculations.html#//apple_ref/doc/uid/TP40007836-SW13^0|D|A|0|R|G|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

<a href="http://developer.apple.com/documentation/Cocoa/Conceptual/DatesAndTimes/Articles/dtCalendricalCalculations.html#//apple_ref/doc/uid/TP40007836-SW13" rel="nofollow noreferrer">Convert the date</a> from the UTC calendar to one with the appropriate local <a href="http://developer.apple.com/documentation/Cocoa/Conceptual/DatesAndTimes/Articles/dtTimeZones.html#//apple_ref/doc/uid/20000185" rel="nofollow noreferrer">NSTimeZone</a>.

blocks|key|1479520|text|我编写此方法将日期时间转换为我们的LocalTimeZone|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1479521|-Here+(NSString+*)TimeZone参数是服务器时区|1479522|-(NSString+*)convertTimeIntoLocal:(NSString+*)defaultTime+:(NSString+*)TimeZone
{
++++NSDateFormatter+*serverFormatter+=+[[NSDateFormatter+alloc]+init];
++++[serverFormatter+setTimeZone:[NSTimeZone+timeZoneWithAbbreviation:TimeZone]];
++++[serverFormatter+setDateFormat:@"yyyy-MM-dd+HH:mm:ss"];
++++NSDate+*theDate+=+[serverFormatter+dateFromString:defaultTime];
++++NSDateFormatter+*userFormatter+=+[[NSDateFormatter+alloc]+init];
++++[userFormatter+setDateFormat:@"yyyy-MM-dd+HH:mm:ss"];
++++[userFormatter+setTimeZone:[NSTimeZone+localTimeZone]];
++++NSString+*dateConverted+=+[userFormatter+stringFromDate:theDate];
++++return+dateConverted;
}|code-block|syntax|javascript|1479523|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I write this Method to convert date time to our LocalTimeZone

-Here (NSString *)TimeZone parameter is a server timezone

<pre><code>-(NSString *)convertTimeIntoLocal:(NSString *)defaultTime :(NSString *)TimeZone
{
 NSDateFormatter *serverFormatter = [[NSDateFormatter alloc] init];
 [serverFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:TimeZone]];
 [serverFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
 NSDate *theDate = [serverFormatter dateFromString:defaultTime];
 NSDateFormatter *userFormatter = [[NSDateFormatter alloc] init];
 [userFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
 [userFormatter setTimeZone:[NSTimeZone localTimeZone]];
 NSString *dateConverted = [userFormatter stringFromDate:theDate];
 return dateConverted;
}
</code></pre>

blocks|key|1264872|text|由于似乎没有人在使用NSDateComponents，我想我应该加入一个……在这个版本中，没有使用NSDateFormatter，因此没有字符串解析，并且NSDate不用于表示格林尼治标准时间(协调世界时)之外的时间。原始NSDate在变量i_date中。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1264873|NSCalendar+*anotherCalendar+=+[[NSCalendar+alloc]+initWithCalendarIdentifier:i_anotherCalendar];
anotherCalendar.timeZone+=+[NSTimeZone+timeZoneWithName:i_anotherTimeZone];

NSDateComponents+*anotherComponents+=+[anotherCalendar+components:(NSCalendarUnitEra+%7C+NSCalendarUnitYear+%7C+NSCalendarUnitMonth+%7C+NSCalendarUnitDay+%7C+NSCalendarUnitHour+%7C+NSCalendarUnitMinute+%7C+NSCalendarUnitSecond+%7C+NSCalendarUnitNanosecond)+fromDate:i_date];

//+The+following+is+just+for+checking+++
anotherComponents.calendar+=+anotherCalendar;+//+anotherComponents.date+is+nil+without+this
NSDate+*anotherDate+=+anotherComponents.date;|code-block|syntax|javascript|1264874|i_anotherCalendar可以是NSCalendarIdentifierGregorian或任何其他日历。允许i_anotherTimeZone的NSString可以通过[NSTimeZone+knownTimeZoneNames]获取，但anotherCalendar.timeZone可以是[NSTimeZone+defaultTimeZone]、[NSTimeZone+localTimeZone]或[NSTimeZone+systemTimeZone]。|1264875|实际上是anotherComponents保存了新时区的时间。您将注意到anotherDate等于i_date，因为它以格林尼治时间(协调世界时)为单位。|1264876|entityMap^0|A|G|1D|F|25|6|33|6|3C|6|0|0|0|H|K|T|1N|H|25|8|2H|V|3G|O|47|S|50|Q|5R|R|0|4|H|10|B|1D|6|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]|$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]|$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1L|8|@$9|1M|A|1N|B|C]|$9|1O|A|1P|B|C]|$9|1Q|A|1R|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|1S|8|@]|D|@]|E|$]]]|P|$]]

Since no one seemed to be using <code>NSDateComponents</code>, I thought I would pitch one in...
In this version, no <code>NSDateFormatter</code> is used, hence no string parsing, and <code>NSDate</code> is not used to represent time outside of GMT (UTC). The original <code>NSDate</code> is in the variable <code>i_date</code>.

<pre><code>NSCalendar *anotherCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:i_anotherCalendar];
anotherCalendar.timeZone = [NSTimeZone timeZoneWithName:i_anotherTimeZone];

NSDateComponents *anotherComponents = [anotherCalendar components:(NSCalendarUnitEra | NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond | NSCalendarUnitNanosecond) fromDate:i_date];

// The following is just for checking 
anotherComponents.calendar = anotherCalendar; // anotherComponents.date is nil without this
NSDate *anotherDate = anotherComponents.date;
</code></pre>

<code>i_anotherCalendar</code> could be <code>NSCalendarIdentifierGregorian</code> or any other calendar.
The <code>NSString</code> allowed for <code>i_anotherTimeZone</code> can be acquired with <code>[NSTimeZone knownTimeZoneNames]</code>, but <code>anotherCalendar.timeZone</code> could be <code>[NSTimeZone defaultTimeZone]</code> or <code>[NSTimeZone localTimeZone]</code> or <code>[NSTimeZone systemTimeZone]</code> altogether.

It is actually <code>anotherComponents</code> holding the time in the new time zone. You'll notice <code>anotherDate</code> is equal to <code>i_date</code>, because it holds time in GMT (UTC).

blocks|key|1264992|text|请使用此代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1264993|NSDateFormatter+*dateFormatter+=+[[NSDateFormatter+alloc]+init];
[dateFormatter+setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss"];+
[dateFormatter+setTimeZone:[NSTimeZone+timeZoneWithAbbreviation:@"UTC"]];
NSDate+*date+=+[dateFormatter+dateFromString:@"2015-04-01T11:42:00"];+//+create+date+from+string

[dateFormatter+setDateFormat:@"EEE,+MMM+d,+yyyy+-+h:mm+a"];
[dateFormatter+setTimeZone:[NSTimeZone+localTimeZone]];
NSString+*timestamp+=+[dateFormatter+stringFromDate:date];|code-block|syntax|javascript|1264994|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Please use this code.
<pre><code>NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@&quot;yyyy-MM-dd'T'HH:mm:ss&quot;]; 
[dateFormatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@&quot;UTC&quot;]];
NSDate *date = [dateFormatter dateFromString:@&quot;2015-04-01T11:42:00&quot;]; // create date from string

[dateFormatter setDateFormat:@&quot;EEE, MMM d, yyyy - h:mm a&quot;];
[dateFormatter setTimeZone:[NSTimeZone localTimeZone]];
NSString *timestamp = [dateFormatter stringFromDate:date];
</code></pre>

blocks|key|1265055|text|SwiftDate库解决方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1265056|//+Take+date+by+seconds+in+UTC+time+zone
var+viewModelDate:+Date+=+DateInRegion(seconds:+Double(backendModel.scheduledTimestamp)).date+

...

//+Convert+date+to+local+timezone+and+convert+to+string+by+format+rule.
label.text+=+viewModelDate.convertTo(region:+.current).toFormat("+EEE+MM/dd+j:mm")+|code-block|syntax|javascript|1265057|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/malcommac/SwiftDate^0|0|9|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

Solution for <a href="https://github.com/malcommac/SwiftDate" rel="nofollow noreferrer">SwiftDate</a> library:
<pre class="lang-swift prettyprint-override"><code>// Take date by seconds in UTC time zone
var viewModelDate: Date = DateInRegion(seconds: Double(backendModel.scheduledTimestamp)).date 

...

// Convert date to local timezone and convert to string by format rule.
label.text = viewModelDate.convertTo(region: .current).toFormat(&quot; EEE MM/dd j:mm&quot;) 
</code></pre>

blocks|key|1479491|text|将UTC时间转换为当前时区。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1479492|调用函数|1479493|NSLocale+*locale+=+[NSLocale+autoupdatingCurrentLocale];

NSString+*myLanguageCode+=+[locale+objectForKey:+NSLocaleLanguageCode];
NSString+*myCountryCode+=+[locale+objectForKey:+NSLocaleCountryCode];

NSString+*rfc3339DateTimeString+=+@"2015-02-15+00:00:00"];
NSDate+*myDateTime+=+(NSDate*)[_myCommonFunctions+_ConvertUTCTimeToLocalTimeWithFormat:rfc3339DateTimeString+LanguageCode:myLanguageCode+CountryCode:myCountryCode+Formated:NO];|code-block|syntax|javascript|1479494|函数|1479495|-NSObject*)_ConvertUTCTimeToLocalTimeWithFormat:rfc3339DateTimeString+++++LanguageCode:(NSString+*)lgc+CountryCode:(NSString+*)ctc+Formated:(BOOL)+formated
{
++++NSDateFormatter+*sUserVisibleDateFormatter+=+nil;
++++NSDateFormatter+*sRFC3339DateFormatter+=+nil;

++++NSTimeZone+*timeZone+=+[NSTimeZone+defaultTimeZone];

++++if+(sRFC3339DateFormatter+==+nil)
++++{
++++++++sRFC3339DateFormatter+=+[[NSDateFormatter+alloc]+init];

++++++++NSLocale+*myPOSIXLocale+=+[[NSLocale+alloc]+initWithLocaleIdentifier:[NSString+stringWithFormat:@"%25@",+timeZone]];

++++++++[sRFC3339DateFormatter+setLocale:myPOSIXLocale];
++++++++[sRFC3339DateFormatter+setDateFormat:@"yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'"];
++++++++[sRFC3339DateFormatter+setTimeZone:[NSTimeZone+timeZoneForSecondsFromGMT:0]];
++++}

++++//+Convert+the+RFC+3339+date+time+string+to+an+NSDate.
++++NSDate+*date+=+[sRFC3339DateFormatter+dateFromString:rfc3339DateTimeString];

++++if+(formated+==+YES)
++++{
++++++++NSString+*userVisibleDateTimeString;

++++++++if+(date+!=+nil)
++++++++{
++++++++++++if+(sUserVisibleDateFormatter+==+nil)
++++++++++++{
++++++++++++++++sUserVisibleDateFormatter+=+[[NSDateFormatter+alloc]+init];
++++++++++++++++[sUserVisibleDateFormatter+setDateStyle:NSDateFormatterMediumStyle];
++++++++++++++++[sUserVisibleDateFormatter+setTimeStyle:NSDateFormatterShortStyle];
++++++++++++}

++++++++++++//+Convert+the+date+object+to+a+user-visible+date+string.
++++++++++++userVisibleDateTimeString+=+[sUserVisibleDateFormatter+stringFromDate:date];

++++++++++++return+(NSObject*)userVisibleDateTimeString;
++++++++}
++++}

++++return+(NSObject*)date;
}|1479496|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Convert UTC time to current time zone.

call function

<pre><code>NSLocale *locale = [NSLocale autoupdatingCurrentLocale];

NSString *myLanguageCode = [locale objectForKey: NSLocaleLanguageCode];
NSString *myCountryCode = [locale objectForKey: NSLocaleCountryCode];

NSString *rfc3339DateTimeString = @"2015-02-15 00:00:00"];
NSDate *myDateTime = (NSDate*)[_myCommonFunctions _ConvertUTCTimeToLocalTimeWithFormat:rfc3339DateTimeString LanguageCode:myLanguageCode CountryCode:myCountryCode Formated:NO];
</code></pre>

Function

<pre><code>-NSObject*)_ConvertUTCTimeToLocalTimeWithFormat:rfc3339DateTimeString LanguageCode:(NSString *)lgc CountryCode:(NSString *)ctc Formated:(BOOL) formated
{
 NSDateFormatter *sUserVisibleDateFormatter = nil;
 NSDateFormatter *sRFC3339DateFormatter = nil;

 NSTimeZone *timeZone = [NSTimeZone defaultTimeZone];

 if (sRFC3339DateFormatter == nil)
 {
 sRFC3339DateFormatter = [[NSDateFormatter alloc] init];

 NSLocale *myPOSIXLocale = [[NSLocale alloc] initWithLocaleIdentifier:[NSString stringWithFormat:@"%@", timeZone]];

 [sRFC3339DateFormatter setLocale:myPOSIXLocale];
 [sRFC3339DateFormatter setDateFormat:@"yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'"];
 [sRFC3339DateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];
 }

 // Convert the RFC 3339 date time string to an NSDate.
 NSDate *date = [sRFC3339DateFormatter dateFromString:rfc3339DateTimeString];

 if (formated == YES)
 {
 NSString *userVisibleDateTimeString;

 if (date != nil)
 {
 if (sUserVisibleDateFormatter == nil)
 {
 sUserVisibleDateFormatter = [[NSDateFormatter alloc] init];
 [sUserVisibleDateFormatter setDateStyle:NSDateFormatterMediumStyle];
 [sUserVisibleDateFormatter setTimeStyle:NSDateFormatterShortStyle];
 }

 // Convert the date object to a user-visible date string.
 userVisibleDateTimeString = [sUserVisibleDateFormatter stringFromDate:date];

 return (NSObject*)userVisibleDateTimeString;
 }
 }

 return (NSObject*)date;
}
</code></pre>

How do I convert a UTC <code>NSDate</code> to local timezone NSDate in Objective C or/and Swift?

iOS: Convert UTC NSDate to local Timezone

如何在Objective C或/和Swift中将UTC NSDate转换为本地时区NSDate？

问iOS:将UTC NSDate转换为本地时区
EN

回答 11

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问iOS:将UTC NSDate转换为本地时区
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