Convert point (medieval time unit) to atomic clock period
Selected category: time.
Definition and details for point (medieval time unit):
Point (time) is a medieval unit of time equal to 1/5 hour, or 12 minutes. One point was divided into 8 moments. One moment was equal to 1.5 minutes or 90 seconds.
Definition and details for atomic clock period:
International System of Units (SI), in 1967 defined the second as the duration of 9,192,631,770 cycles of radiation corresponding to the transition between two energy levels of the caesium-133 atom.