Measurement of time

The video explains the use of atomic clocks for precise time measurement, focusing on cesium clocks. It details how cesium atoms' vibrations define a second and highlights the clocks' accuracy, with minimal deviation over a year. The video also mentions the National Physical Laboratory in New Delhi, where a cesium clock is maintained.

What is the significance of the number 9 billion 192 million 631,770 in relation to atomic clocks?

Why are cesium clocks considered extremely accurate?