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Set system clock to local sidereal time (the time needed for astronomy)

rated 0 times [ 3] [ 0] / answers: 1 / hits: 1184 / 3 Years ago, wed, may 5, 2021, 8:34:06

Basically if you don't already know, the world is round, so we have timezones as an agreement. I want my system time to be set to LST.

I want to know what the local (determined from gps coords) time is on ubuntu, not the time in one of the timezones (for various sociopolitical reasons). Is there a package or script to set the system time based off of LST for current coordinates, rather than something more general, like a time zone?

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answered 3 Years ago sertold · Accepted Answer

What you search is the LST (Local Solar Time) or local sideral time, and you can use an online page to see it.

enter image description here

As the OP found, there is the sunclock application which you can install with

sudo apt-get install sunclock

Run it (sunclock from the command line) and after you have resized the normally tiny window, you can switch from "map" mode to a "clock" mode by hitting ! (you can have a very old-fashioned but IMHO nice menu by clicking in the window when in map-mode). In clock mode you click on the place you want and you'll have the local time.

Map-mode with the menu:
enter image description here

Clock mode:
enter image description here