It takes 12 years
About 6 days.
248 earth years
roughly 248 years (rounded)
24 hours (You spelled revole wrong and it is suppose to be rotate. The earth can't revole on its axis. It can rotate though.)
It takes Eris 557 years to orbit the sun
arround 8 hours
The moon revolves around the earth once each 27.32 days. (rounded)
it takes arround 9 hrs to come to U.K from India.
How long it takes for you to get there.
12 years
11.9 years
Since Callisto is a moon of Jupiter, it orbits the Sun together with Jupiter - and takes just as long as Jupiter to orbit the Sun.