Older civilizations tended to be far more relaxed about time than we are, and "days" were pretty much the smallest denomination they cared about. When higher resolution was needed the height of the sun was usually sufficient.
None,becuase it is the sun.
About 8 minutes from the sun to earth
It takes a year or the earth to orbit the sun.
There must be a source of sufficient light. Ie. Solar energy is only charging half the time on earth, as we spin and only face the sun half the time!
No. The hydrogen on the Sun does not burn; it fuses to make helium instead.
it takes 224.7 days
which risk management process is used when there is sufficient time to plan
It has been orbiting the sun since it was formed.
About 8 minutes from the sun to earth
Pretty much all the time.
Half of the Earth at a time.