So the @Gmuli calculator is not universal?
Some people invert the time for the other hemisphere. There are multiple ways of doing that and seems more then one is often applied.
Some use Solar Time. Some use Sidereal time.
Some use the time when the event will happen. Some use the time when they are asking. Again both can be Solar, Sidereal. Both can be inverted or not...
Some use the time when the question first came to the person asking. Some use the time the person asking came to them. Again can be Solar and Sidereal... Again can be inverted or not.
All this can also be using Chinese time or not, as well. And for Chinese time that could be Beijing time, that would be somewhat easier to convert, to Solar Time and that will need a calculator...
There are other approaches as well.
Does our calculators work with all that... Sure. Convert the time to what you want it to be and it will work. It won't calculate it for you, of course, as we couldn't know when much of that has happened.
We will add Solar Time again someday, but part of the calculations we used were from author we aren't working together with anymore, so will have to rework that. But can't say an estimate on that, as I'm not currently looking into it.
The only calculator I made that had Chinese time conversion was the ZWDS one and that is not in the open for a while now... There are websites that can do it very easily and effortlessly.