3 ms·

> However, there used to be a very practical solution, to center the clock at noon, which drifts only a few minutes over the year. Noon drifts by just over 30

> However, there used to be a very practical solution, to center the clock at noon, which drifts only a few minutes over the year. Noon drifts by just over 30 minutes throughout the year, not just a few minutes.

_ph_ 6y ago
The difference of sun to the noon is at maximum 16m 33s (https://en.wikipedia.org/wiki/Equation_of_time https://en.wikipedia.org/wiki/Equation_of_time)
- CydeWeys 6y ago
  You need to multiply by 2 because it's drifting both before and afterwards, hence a little over 30 minutes of total drift.
  - _ph_ 6y ago
    For the question of the symmetry, only the difference to the noon point is relevant.