3 ms·
Tracks a true solar day? Is there actually a scientific definition of when a day starts and ends? As far as I can tell skimming Wikipedia, it's simply 86400 sec
by Firehed 14y ago
Tracks a true solar day? Is there actually a scientific definition of when a day starts and ends? As far as I can tell skimming Wikipedia, it's simply 86400 seconds.
Certainly by my body clock, a "true solar day" is when I'm on DST.
- mooism2 14y agoMidday GMT is defined to be when the mean sun is directly over the prime meridian. ("Mean sun" as opposed to "apparent sun" because of the Earth being a naturally occurring celestial object, rather than an idealised mathematical model. See http://en.wikipedia.org/wiki/Equation_of_time http://en.wikipedia.org/wiki/Equation_of_time .)