3 ms·

28*13(+1)=365 (or +2 on leap years)

• hoseja 7y ago
  1 second = 9192631770 unperturbed ground-state hyperfine transitions of cesium-133 atom (preferably outside of solar system gravitation well) Calendars are silly. "Neat" ones even more so.
  • _jal 7y ago
    Nah, humans are just missing about a twelfth of a finger.
  • admax88q 7y ago
    Brb, just going to check my pocket cesium-133 so I can calculate how many days till my dentist appointment.