iOS将时间NSDate转化为毫秒时间戳的方法示例

long long time = [self getDateTimeTOMilliSeconds:[NSDate date]];

NSLog(@"%llu",time);

NSDate *dat = [self getDateTimeFromMilliSeconds:time];

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

[formatter setDateFormat:@"yyyy-MM-dd hh:mm:ss.SSS"];

NSString *date = [formatter stringFromDate:dat];

NSString *timeLocal = [[NSString alloc] initWithFormat:@"%@", date];

NSLog(@"\n%@", timeLocal);

//将时间戳转换为NSDate类型

-(NSDate *)getDateTimeFromMilliSeconds:(long long) miliSeconds

{

NSTimeInterval tempMilli = miliSeconds;

NSTimeInterval seconds = tempMilli/1000.0;//这里的.0一定要加上，不然除下来的数据会被截断导致时间不一致

NSLog(@"传入的时间戳=%f",seconds);

return [NSDate dateWithTimeIntervalSince1970:seconds];

}

//将NSDate类型的时间转换为时间戳,从1970/1/1开始

-(long long)getDateTimeTOMilliSeconds:(NSDate *)datetime

{

NSTimeInterval interval = [datetime timeIntervalSince1970];

NSLog(@"转换的时间戳=%f",interval);

long long totalMilliseconds = interval*1000 ;

NSLog(@"totalMilliseconds=%llu",totalMilliseconds);

return totalMilliseconds;

}

+ (NSDate *)getLocateTime:(unsigned int)timeStamp {

 double dTimeStamp = (double)timeStamp;

 NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:dTimeStamp];

 return confromTimesp;

}