It is important for computers to know the correct time. Everything from online shopping to stock market trades rely on accurate time keeping. But how do computers know what time it is? Here is a quick look at how computers synchronize their clocks including a look at NTP and PTP. Introduction to Android app development: https://www.dgitacademy.com/ Let Me Explain T-shirt: https://teespring.com/gary-explains-let-me-explain-2 Twitter: https://twitter.com/garyexplains Instagram: https://www.instagram.com/garyexplains/ #garyexplains