About 365.25 days (hence an extra day every 4 years) or 1.0000174 years on the Gregorian calendar we use.
How long it takes is the distance divided by the speed.
It really requires an entire year for earth to loop-de-loop the sun. That is what the definition of a year is--the amount of time it takes our orb to orbit once.
The same length of time as the Earth
It takes one day for the Earth to rotate once on its axis. It takes about 365.25 days for the Earth to travel (orbit) once around the Sun.
The sun does not travel around the Earth, Earth travels around the sun. The Earth rotates once every 24 hours.
It takes Jupiter approximately 12 years to orbit the sun.
It takes the Moon 27.322 days to go around the Earth once.
The radio waves from a lightning stroke travel at the speed of light, you can hear them as clicks on a long-wave radio, and they travel round the world in 1/7th of a second.
One light-year is the distance light travels in one year, which is about 5.88 trillion miles. Light doesn't orbit the Earth, but if you're asking how long it takes light to travel around the Earth's circumference once, at the speed of light (about 186,282 miles per second), it would take only about 0.13 seconds.
The earth is falling. It takes the earth an entire year to fall once around the sun.
Mars takes about 687 Earth days, or 1.88 Earth years, to orbit the Sun once.
once a year... -_-