Usable Daylight Hours
As the sun rises and sets the amount of UV rises and falls. This is because as the sun drops in the sky, more UV is filtered out by the atmosphere. Once the sun drops below 45 degrees the amount…
Tag art
As the sun rises and sets the amount of UV rises and falls. This is because as the sun drops in the sky, more UV is filtered out by the atmosphere. Once the sun drops below 45 degrees the amount…