It would depend on how fast you were travelling and hence what aircraft you were flying. Also flying eastbound is usually faster than travelling westbound due to the jet stream etc. A good average speed to use though, is 500 miles per hour. The earths circumference is 25000 miles and so half way is 12,500 miles. So assuming you had an aircraft with the range it would take 12,500/500 = 25 hours.
Realistically this is not possible. Fairly recently a Boeing 777-200LR with a specially trained crew and no passengers or freight went from Seattle to Seattle with only one stop in Bangladesh. This was northern hemisphere only so not a true round the world. Flying commercially, you would make a stop. A sensible way would be Seattle -London Heathrow - Dhakar. With flight change, take offs and landing, 30 -32 hours would be more reasonable.
It would take the Earth around 93 million miles to reach halfway to the Sun in its orbit. Earth's average distance from the Sun is about 93 million miles, so halfway would be approximately half of that distance.
5.678 seconds
15 seconds
About an hour and a half.
1 day
8 months
If you are asking "how long would it take to fly around the world?", then it would of taken 22 hours in concord, but the world record is held by Steve Fossett, he did it in 67 hours in the Global Flyer.
At 3 miles per hour, 347 days. a long time
The time it takes to travel halfway across the world depends on the mode of transportation and the specific locations involved. For instance, a direct flight from one hemisphere to another typically takes around 10 to 15 hours. However, if you're considering driving or sailing, the journey could take days or even weeks, depending on the route and conditions. Ultimately, "halfway" can vary based on the starting and ending points.
they would be so long that they would be able to wrap all the way round the world
Well, actually, halfway houses are looked at in two ways. First, they are simple stops about midway through a journey. For instance, if you take a long road trip and stop at a hotel - this would be considered a halfway house. The other (more common) reference for a halfway house is a rehab center where a person goes after having been institutionalized (via jail, hospitals, etc) to help adjust or re-adjust to living in the "outside world."
It's impossible to determine the halfway point without knowing where in Long Island you're starting from. If you start from Montauk Point, your halfway point will still be on Long Island.