Add a specific time of day offset

Hi Brian, dont want to sound pushy but i also dont want the thread to fall away.

The reason its important to me is because i have solar panels at this property, so a more accurate w/m2 reading
would be advantageous when using appliances in the house etc. during the fudge offset times i am losing about 50% of sunshine data
compared to the max amount for time of day, in sunshine hours and w/m2 generated