ios - NSDateFormatter 不适用于 PET 格式

Question

我想从带有时区 PET 的 API 中解析日期字符串。所以我创建了 NSDateFormatter 并将字符串转换为日期，但不幸的是它不起作用。结果我没有得到。任何解决方法？

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];
[formatter setDateFormat:@"EEE MMM dd HH:mm:ss yyyy zz"];
NSDate *newStartDate = [formatter dateFromString:@"Mon Sep 29 14:40:00 2014 PET"];

NSLog(@"newStartDate - %@",newStartDate);

Answer 1

试试下面的函数。它会工作...

     NSDate *newStartDate = [self dateFromString:@"Mon Sep 29 14:40:00 2014 PET"];

     NSLog(@"newStartDate - %@",newStartDate);


    - (NSDate *)dateFromString:(NSString*)inDateString
    {
       NSDateFormatter  *pivotalDateFormatter = [[NSDateFormatter alloc] init];
       NSDate * dateToBeReturned = nil;
       [pivotalDateFormatter setDateFormat:@"EEE MMM dd HH':'mm':'ss yyyy z"];

       NSString * timezoneAbbreviation = [[inDateString componentsSeparatedByString:@" "]       lastObject];
       NSTimeZone *timeZone = [NSTimeZone timeZoneWithAbbreviation:timezoneAbbreviation];
      if (timeZone)
      {
        NSString *gmtTime = [inDateString    stringByReplacingOccurrencesOfString:timezoneAbbreviation withString:@"GMT"];
        dateToBeReturned = [[pivotalDateFormatter dateFromString:gmtTime] dateByAddingTimeInterval:-timeZone.secondsFromGMT];
      }
    return dateToBeReturned;
   }