Wish the same lat/long based apps showing local sunrise and sunset could also show local solar time.
Never heard of it. What is local solar time? 
Is there any website that shows how to convert a standard time into a solar time?
I did it! I will submit it for review, might take some days before it appears in the app store.
This is how it looks like:
You also have options to use 24h mode and show the local time:
The calculations were based on the website below.
Once you start using the app, please let me know if something is wrong as I’m not an expert on this matter. 
Thanks, it looks great. Cant wai tto load it.
