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Multiple conversions
To convert from Year (year) to Nanosecond (ns), use the following formula:
To convert from Year (year) to Microsecond (mu), use the following formula:
To convert from Year (year) to Millisecond (ms), use the following formula:
To convert from Year (year) to Second (s), use the following formula:
To convert from Year (year) to Minute (min), use the following formula:
To convert from Year (year) to Hour (h), use the following formula:
To convert from Year (year) to Day (d), use the following formula:
To convert from Year (year) to Week (week), use the following formula:
To convert from Year (year) to Month (month), use the following formula:
A year is the time it takes for the Earth to complete one full orbit around the Sun.
We commonly think of a year as 365 days, but it's not quite that simple. The Earth's journey actually takes a little longer, which is why our calendar needs a special trick to stay accurate.
The Earth takes approximately 365.24 days to travel around the Sun. That extra quarter of a day might not seem like much, but it adds up over time.
To keep our calendar in sync with the Earth's orbit and the seasons, we add an extra day—February 29th—nearly every four years. This is called a leap year.
Without leap years, our calendar would drift by about 24 days every 100 years, and eventually, we'd have summer in December!
Yes! While our calendar uses a 365-day system, scientists use more precise measurements depending on what they're tracking.
The two most common types of years are:
The idea of a "year" can get much, much bigger. Just as the Earth orbits the Sun, our entire solar system orbits the center of the Milky Way galaxy.
This enormous journey is called a Galactic Year (or cosmic year), and it takes an estimated 230 million Earth years to complete. To put that in perspective, the last time our solar system was in this exact spot, dinosaurs were beginning to roam the Earth during the Triassic period.