4 ms·

It could be within 30 minutes of correct for nearly everyone, if we decide that's a goal for the system.

• s1artibartfast 4y ago
  But for most people it seems like a terrible goal. Solar maximum is much less important to daily life than sunrise and sunset
  • inciampati 4y ago
    A sunrise centered clock would be awesome and insanely impractical. Your days will be longer than 24hrs from winter to summer solstice, and shorter from summer to winter. You cannot have the same time system across an entire line if longitude. Which sunrise do you pick? The equitorial one? 45 north? This may be more fraught than you were considering.
    • s1artibartfast 4y ago
      OK, you convinced me. I have decided I am now a sunrise local time absolutist. We could move from measuring time with a 24 hour clock to one based on solar angle. We could also measure geographic distance in relative change of solar angle, combining our time and distance systems. Some think it overly complex, but the increased geometry proficiency would save many lives.
    • rssoconnor 4y ago
      One perk of work-from-home is that I try to structure my day around sunrise like this. I set my alarm for sunrise (usually I only adjust it once a week), with the nice perk that when DST rolls around I don't lose any sleep, I just wake up "later". I am far enough north that at some point as summer rolls around, I transition to sunset based structure, setting my morning alarm for 9 or 10 hours after sunset.
    • tzs 4y ago
      Why do you need the same time system across an entire line of longitude?