4 ms·

Sidereal time is only like 4 minutes or so off standard, iirc.

• rpvnwnkl 7y ago
  Seems like sidereal and solar time are 4 minutes off per ‘day’. They are more similar to each other than standard time, I think. But I was referring to their day reference starting at ‘high noon’. It’s unlikely your version of standard time has noon at the sun’s peak. My solar noon is at around 11:30, and will be at 12:30 after the time change. Honestly not that different I suppose, but it You can check yours here: https://www.esrl.noaa.gov/gmd/grad/solcalc/ https://www.esrl.noaa.gov/gmd/grad/solcalc/