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Could you potentially freeze time? solidcolours / Getty ImagesEssential Insights
- Traveling westward along the Earth's equator at speeds exceeding 1,000 miles (1,600 kilometers) per hour enables you to follow noon globally, keeping your watch's time fixed between 12:00 noon and 1:00 p.m. as long as you sustain your speed and direction.
- This effect happens because your movement matches the Earth's rotation speed but in the opposite direction, causing the sun to remain stationary in the sky relative to your plane.
- While the time of day appears frozen, the date will still shift as you pass the International Date Line, demonstrating that time progresses even if the sun remains directly overhead.
Imagine you're aboard a plane traveling westward along the Earth's equator. At this latitude, time zones are spaced approximately 1,000 miles (1,609 km) apart. To cross one every hour, your aircraft would need to maintain a speed exceeding 1,000 miles per hour (1,609 kph).
If your flight began at 12:00 noon, by 1:00 p.m. (on your watch), you'd cross a time zone, resetting the time to 12:00 noon again. This cycle would repeat as long as your plane remained airborne: every time your watch reached 12:59, you'd turn it back to 12:00. Throughout your westward journey, the time would perpetually remain between 12:00 noon and 1:00 p.m.
Essentially, you're maintaining your position relative to the sun. By flying at the same speed as the Earth's rotation but in the opposite direction, the sun remains fixed in the sky. At noon, the sun is directly overhead, so during this flight, it would always appear above the plane. You're essentially chasing noon globally. Alternatively, if you prefer sunsets, you could embark on your westward trip just as the sun sets, experiencing an endless sunset.
What if your plane could stay airborne for days or even weeks? Would time stand still indefinitely? While the time of day would remain constant (between 12:00 noon and 1:00 p.m.), the date would continue to advance. Each time you cross the International Date Line, it would instantly become 12:00 noon the following day.
The International Date Line stretches from the North Pole to the South Pole, passing through the Pacific Ocean. It lies directly opposite the Prime Meridian (located in Greenwich, England).
Prior to the creation of the International Date Line, Ferdinand Magellan, the Portuguese explorer credited with the first global circumnavigation, discovered upon his return that he was a full day behind. His crew meticulously recorded each day in their logs, revealing that during their nearly three-year journey, they had experienced one fewer sunrise and sunset compared to those who remained on land.
