We never have enough of it and we try to save some every day. But who measures and defines time itself?
With these words the article Guardians of the exact time in the journal A Věda a výzkum 01/2022 begins. Jan Hanáček, author of the article, had the opportunity to look into the Laboratory of the National Time and Frequency Standard at ÚFE, where cesium clocks work tirelessly to create the exact time, and interviewed the head of the laboratory, Alexander Kuna.
You can read the article here (in Czech only).