Rounded to the nearest whole day, 365 days. This is where we derive the amount of days we assign to a year from. Leap years occur when the extra time (as it is not exactly 365 days) builds up.
The sun does not travel around the Earth, Earth travels around the sun. The Earth rotates once every 24 hours.
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.
It takes the Moon 27.322 days to go around the Earth once.
It takes around 355.9 days but changes every 4 years to around 356 days.
Venus revolves around the sun, not the earth.
It takes Jupiter approximately 12 years to orbit the sun.
once every year
Sound travels at a speed of approximately 343 meters per second in air. The circumference of the Earth is about 40,075 km, so it would take around 2 hours and 45 minutes for sound to travel around the Earth once.
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.
Since the moon is gravitationally associated with Earth it takes 1 year to go around the sun. According to the Julian Calender this is about 365.25 Earth days.
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.
The Earth's Moon orbits around Earth once in a Month and the Earth orbits around the Sun once in a year, so the Moon orbits around the Sun once in a year too.