获取当前时间

NSDateFormatter *nsdf2=[[[NSDateFormatter alloc] init]autorelease];

 

[nsdf2 setDateStyle:NSDateFormatterShortStyle];

 

[nsdf2 setDateFormat:@"YYYYMMDDHHmmssSSSS"];

 

NSString *t2=[nsdf2 stringFromDate:[NSDate date]];

 

long curr=[t2 longLongValue];

//时间戳转换时间

NSTimeInterval date=[self.timestamp doubleValue];

    NSDate *detaildate=[NSDate dateWithTimeIntervalSince1970:date];

    NSDateFormatter *formatter=[[[NSDateFormatter alloc] init] autorelease];

    formatter.timeZone = [NSTimeZone timeZoneWithName:@"Asia/Shanghai"];//注意时区设置

    [formatter setDateFormat:@"yyyyMMddHHmmss"];

    NSString *starLiveTime=[formatter stringFromDate:detaildate];

获取当前的系统时间 年－月－日  小时－分钟－秒

NSDate * newDate = [NSDate date];

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

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

    NSString * newDateOne = [dateformat stringFromDate:newDate];

    [dateformat setFormatterBehavior:NSDateFormatterFullStyle];

    [dateformat setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];

    NSLog(@"request start time%@",newDateOne);