# Quick Answer: How Long Is A Solar Year Exactly?

## Is a solar year 12 hours longer than a calendar year?

Ultimately, both sidereal years and solar years are slightly longer than our 365-day calendar year.

However, in order to maintain the day as a significant marker of time, we round our calendar to the nearest day..

## How long is a solar month?

30 daysOne twelfth of a solar year, totaling 30 days, 10 hours, 29 minutes, 3.8 seconds.

## Who calculated the solar year?

Erasmus ReinholdErasmus Reinhold used Copernicus’ theory to compute the Prutenic Tables in 1551, and gave a tropical year length of 365 solar days, 5 hours, 55 minutes, 58 seconds (365.24720 days), based on the length of a sidereal year and the presumed rate of precession.

## How many days are in a solar year of 12 months?

365 daysa division of time equal to 12 lunar months. b. Also called solar year. a division of time equal to 365 days, 5 hours, 48 minutes, and 46 seconds, representing the interval between one vernal equinox and the next.

## Is there really a 33 year cycle?

A lunar month lasts 29.53 days. So after 12 lunar months, you’re about about 354 days. This is short of the 365 days that it takes the Earth to orbit the Sun. … It takes 33 years for the cycle of lunar years to get back to the original position.