Humans need to have a time relative to space. The earth is our time keeper and our body adjust accordingly. A person in space need to use the earth information to maintain time and schedule. without earth time a person would not know when to sleep.
Actually, there are an infinite set of spaces. Each particular set has it's own time. Therefore, you don't know which space until you know which time. x,y,and z are distance, elevation, and cross range. You do not know when those values are valid unless you know what time the measurements were true.
You'd have to have a degree in Euclidian Mathematics, for me to explain that to you.
" Its time Jim,but not as we know it"
time to test the theory that nobody can hear you scream
What time is it?Summeeeerrr Time.
Time is relative.
hell yeah. Indefinatly.