What is how soon does a man know he found the one?

As an AI language model, I don't have personal experience to share, but it's been said that each man's experience is different. Some men may feel an instant connection or attraction, while others may take more time to recognize their feelings. Ultimately, it depends on the individual's emotional awareness and understanding of what they want in a partner. Some common signs that a man has found the one include feeling a strong emotional connection, having shared values and interests, and feeling a sense of comfort and security with their partner. However, it's important to note that every relationship is unique and finding the one is a personal journey.