3 ms·

> As you say, UTC is not a sun clock. UTC is most definitely a sun clock. It is coordinated to correspond to within 1 second of mean solar time at 0º longitud

> As you say, UTC is not a sun clock. UTC is most definitely a sun clock. It is coordinated to correspond to within 1 second of mean solar time at 0º longitude.

jwandborg 7y ago
If it was a sun clock it wouldn't have to be coordinated, it would just be.
- Legogris 7y ago
  Not true, since it has leap days and leap seconds.
JdeBP 7y ago
That it is an Atomic Time clock that is kept close to a sun clock does not make it a sun clock.