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Stellarium / stellarium-web-engine

JavaScript planetarium engine
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Rise and Set time and daylight/nighttime is incorrect for mid-Southern lats #62

Open janagrc opened 4 years ago

janagrc commented 4 years ago

I'm using Stellarium Web to determine the rise and set times of the Sun and other objects, but I noticed these are not correct for mid-Southern latitudes throughout the year. I compared Sydney and Durban through the year in both Stellarium Web and Stellarium OSX and the sunrise and sunset times are not in agreement. I thought at first Stellarium web may be using UTC instead of local, but that doesn't seem to be the case.

Screen Shot 2020-08-24 at 2 47 26 PM

Thanks!

xalioth commented 3 years ago

Hello,

thanks for the report. This is very likely because currently in the web version setting manually a city in the location menu doesn't change the time zone, i.e. it still uses your local time zone (the one used by your computer). I agree we need a fix for this counter intuitive behavior.

Fabien

janagrc commented 3 years ago

Ah, I see, thanks for letting me know. Are there any workarounds currently (other than resetting the local time on your machine to whatever the simulated locale is)?

xalioth commented 3 years ago

For the moment, I'd say the best workaround would be to do the time conversion by yourself..

On Wed, Sep 2, 2020 at 11:57 PM Jana Grcevich notifications@github.com wrote:

Ah, I see, thanks for letting me know. Are there any workarounds currently (other than resetting the local time on your machine to whatever the simulated locale is)?

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