NSString (+timezone) to NSDate

Question

未能将NSString转换为nsdate

结果：date = nil;

（*注意：从应用收据中收到的日期）

NSString * date_string = @"2017-09-24 11:20:21 Etc/GMT";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *date = [dateFormatter dateFromString:date_string];
NSLog(@"date %@",date);

Answer 1

尝试这个..

    NSString * date_string = @"2017-09-24 11:20:21 Etc/GMT";
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
   [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss VV"];
    NSDate *date = [dateFormatter dateFromString:date_string];
    NSLog(@"date %@",date);

Answer 2

问题是您尚未告诉date formatter如何在日期结束时（即 Etc/GMT）处理有趣的字符序列。您格式在其末尾需要一个时区说明符。VV可能会做技巧，即

[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss VV"];