iOS－时间戳转化成时间

NSString *str=[NSString
stringWithFormat:@"%@",pdate];// pdate为时间戳
NSTimeInterval time=[str
doubleValue]+28800;//因为时差问题要加8小时
time=time/1000;
NSDate *detaildate=[NSDate
dateWithTimeIntervalSince1970:time];

NSDateFormatter *dateFormatter = [[NSDateFormatter
alloc] init];

[dateFormatter
setDateFormat:@"yyyy-MM-dd HH:mm:ss"];//时间格式

NSString *destDateString = [dateFormatter
stringFromDate:detaildate];