Why do you think accurate measurement of time became possible much after accurate measurement of length and mass ?
Kindly refer to the link given below to get your answer :
https://www.meritnation.com/ask-answer/question/why-do-you-think-accurate-measurement-of-time-became-possibl/motion-and-time/6952058
https://www.meritnation.com/ask-answer/question/why-do-you-think-accurate-measurement-of-time-became-possibl/motion-and-time/6952058