- Time
int result = int.Parse(DateTime.Now.ToString("HHmmssfff"));
//040436168
- Date + Time
long result = Int64.Parse(DateTime.Now.ToString("yyyyMMddHHmmssfff"));
//20240322040436168

int result = int.Parse(DateTime.Now.ToString("HHmmssfff"));
//040436168
long result = Int64.Parse(DateTime.Now.ToString("yyyyMMddHHmmssfff"));
//20240322040436168