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OpenBSD adds support for Coordinated Mars Time

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11–20 of 66 posts

Re: OpenBSD adds support for Coordinated Mars Time

#12
post #7

Should we go ahead and make a SSCT (solar system coordinated time) as well? That way I don't have to constantly be converting lunar timestamps, mars timestamps, etc. back to UTC (or the coordinated time of whichever celestial body I'm currently on) in order to paint a timeline of when events happened between my different devices spread out across the solar system.

Time is local to a region though - there isn't any "Solar System Coordinated Time".

Just hold still and avoid gravity wells. It’ll work out.

Re: OpenBSD adds support for Coordinated Mars Time

#13
post #7

Should we go ahead and make a SSCT (solar system coordinated time) as well? That way I don't have to constantly be converting lunar timestamps, mars timestamps, etc. back to UTC (or the coordinated time of whichever celestial body I'm currently on) in order to paint a timeline of when events happened between my different devices spread out across the solar system.

Time is local to a region though - there isn't any "Solar System Coordinated Time".

I guess pulsars may be our best bet for a universally coordinated time? We can detect the passage of time in a gravity well and create a well-centric system if need be!

Re: OpenBSD adds support for Coordinated Mars Time

#15
post #7

Should we go ahead and make a SSCT (solar system coordinated time) as well? That way I don't have to constantly be converting lunar timestamps, mars timestamps, etc. back to UTC (or the coordinated time of whichever celestial body I'm currently on) in order to paint a timeline of when events happened between my different devices spread out across the solar system.

I'd say define a "cycle" as greatest common divisor of all planets' rotation periods. Make it an equivalent of "solar system day/hour" or something.

Re: OpenBSD adds support for Coordinated Mars Time

#16
I wonder how time zones on other planets would work once relativistic time dilation has to be considered. Add a multiplier to how fast your clock ticks? I suppose satellites should have this problem already resolved but only in Earth's sphere of influence.

Also simply travelling to Mars would desynchronize the time and would have to be resynced.

Re: OpenBSD adds support for Coordinated Mars Time

#17
It's interesting that time and date semantics are based on the rotation and orbits of planets.

A truly universal time should probably be based on the orbits or other oscillations of atoms, possibly away from a gravity well and at a precise temperature.

Re: OpenBSD adds support for Coordinated Mars Time

#19
post #15
post #7

Should we go ahead and make a SSCT (solar system coordinated time) as well? That way I don't have to constantly be converting lunar timestamps, mars timestamps, etc. back to UTC (or the coordinated time of whichever celestial body I'm currently on) in order to paint a timeline of when events happened between my different devices spread out across the solar system.

I'd say define a "cycle" as greatest common divisor of all planets' rotation periods. Make it an equivalent of "solar system day/hour" or something.

The problem is these orbital periods are generally not rational multiples of each other, so their GCD is undefined (or 0, in a sense).

Some exceptions to this exist due to orbital resonance: Pluto and Neptune are in 2:3 resonance, and in the Jovian system Ganymede, Europa, and Io are in 1:2:4 resonance.

Re: OpenBSD adds support for Coordinated Mars Time

#20
post #16

I wonder how time zones on other planets would work once relativistic time dilation has to be considered. Add a multiplier to how fast your clock ticks? I suppose satellites should have this problem already resolved but only in Earth's sphere of influence. Also simply travelling to Mars would desynchronize the time and would have to be resynced.

GPS systems have already had to solve this and from what I can make of it, its a fully general solution that could be ported to mars etc. https://jimlambskeptic.com/gps-and-time-dilation/
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