Converting from Year (y) to Tropical Year (TY) in Time

What is Year (y)

A year (y) is a unit of time commonly used to measure the passage of time based on the Earth's orbit around the Sun. It is typically defined as 365 days or 12 months.

What is Tropical Year (TY)

A Tropical Year (TY) is the time it takes for the Sun to return to the same position in the sky relative to the stars. It is approximately 365.24219 days long and is slightly longer than a standard year.

Conversion Formulas

The default conversion formulas between Year (y) and Tropical Year (TY) are as follows:

• 1 (y) = 0.9993369 (TY)
• 1 (TY) = 1.000664 (y)

For converting from Year to Tropical Year, use the formula:

TY=y×0.9993369

For converting from Tropical Year to Year, use the formula:

y=TY×1.000664

Examples

• 10 (y) = 9.993369 (TY)
• 10 (TY) = 10.00664 (y)
• 14 (y) = 13.99072 (TY)
• 14 (TY) = 14.00929 (y)
• 17 (y) = 16.98873 (TY)
• 17 (TY) = 17.01128 (y)

Use this page to perform converting from Year (y) to Tropical Year (TY) and vice versa.