本文介绍了NSDateFormatter错误的时间的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 我有一个字符串,我想从以下地址解析时间: NSString * longdate = @2011年3月27日8:38:38 PM 我想解析这个日期,只输出时间部分w / hours + minutes + am / pm : //首先,将我们的字符串转换为NSDate NSDateFormatter * inFormat = [[NSDateFormatter alloc] init] ; [inFormat setDateFormat:@MMM dd,yyyy HH:mm:ss aaa]; NSDate * date = [inFormat dateFromString:longdate]; [inFormat release]; //现在从日期转换为字符串 NSDateFormatter * outFormat = [[NSDateFormatter alloc] init]; [outFormat setDateFormat:@HH:mm aaa]; NSString * final = [outFormat stringFromDate:date]; [outFormat release]; NSLog(@original:%@ | final%@,longdate,final); 问题是最后的时间是错误的。我期待时间是下午8:38,而是下午12:38。 我只是想和我一样的时间,而且不打扰任何时区或地区。我在这里做错了什么?谢谢。解决方案发现问题。与时区无关,并且与日期格式化程序使用错误的格式代码有关。 [inFormat setDateFormat:@ MMM dd,yyyy HH:mm:ss aaa]; 应该是: [inFormat setDateFormat:@MMM dd,yyyy h:mm:ss aaa]; 同样,outFormat的dateformat应该是: [outFormat setDateFormat @h:mm aaa]; 在此调整后,即使没有任何TimeZone调整,一切都可以正常运行。 I have a string that I want to parse the time from:NSString *longdate = @"Mar 27, 2011 8:38:38 PM";I want to parse this date and output just the time portion w/ hours+minutes+am/pm:// First, convert our string into an NSDateNSDateFormatter *inFormat = [[NSDateFormatter alloc] init];[inFormat setDateFormat:@"MMM dd, yyyy HH:mm:ss aaa"];NSDate *date = [inFormat dateFromString:longdate];[inFormat release];// Now convert from date back to a stringNSDateFormatter *outFormat = [[NSDateFormatter alloc] init];[outFormat setDateFormat:@"HH:mm aaa"];NSString *final = [outFormat stringFromDate:date];[outFormat release];NSLog(@"original: %@ | final %@", longdate, final);The problem is the final time is wrong. I expect the time to be 8:38 PM, but instead I get 12:38 PM.I just want to get the same hour out that I put it, and not bother w/ any time zones or locales. What am I doing wrong here? Thanks. 解决方案 Found the problem. Had nothing to do with timezones and everything to do with using the wrong formatting codes for the date formatter.[inFormat setDateFormat:@"MMM dd, yyyy HH:mm:ss aaa"];should be:[inFormat setDateFormat:@"MMM dd, yyyy h:mm:ss aaa"];Likewise, outFormat's dateformat should be:[outFormat setDateFormat:@"h:mm aaa"];After this adjustment everything works fine even w/o any TimeZone adjustments. 这篇关于NSDateFormatter错误的时间的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!
09-20 22:30