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A year is the orbital period of the Earth moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility.
In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn, and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked.
A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars; see below. For the Gregorian calendar, the average length of the calendar year (the mean year) across the complete leap cycle of 400 years is 365.2425 days. The ISO standard ISO 80000-3, Annex C, supports the symbol a (for Latin annus) to represent a year of either 365 or 366 days. In English, the abbreviations y and yr are commonly used.
In astronomy, the Julian year is a unit of time; it is defined as 365.25 days of exactly 86,400 seconds (SI base unit), totalling exactly 31,557,600 seconds in the Julian astronomical year.The word year is also used for periods loosely associated with, but not identical to, the calendar or astronomical year, such as the seasonal year, the fiscal year, the academic year, etc. Similarly, year can mean the orbital period of any planet; for example, a Martian year and a Venusian year are examples of the time a planet takes to transit one complete orbit. The term can also be used in reference to any long period or cycle, such as the Great Year.

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  1. JJ2022

    Do I have to force my 10, 12 and 14 year old to spend time with their alcoholic Dad and his new partner

    My 12 and 14 year old do not want to spend time with their Dad. He wants me to drop them off and make them go to his apartment with his new partner. They refuse. He has passed out in front of them, is addicted to alcohol, his partner is a drinker, they don't like her, and they refuse to get...
  2. M

    WA 14 Year Old doesn't want to live with other parent

    Hi. I have 2 children 12 and 14. Separated from their father 11 years ago and have had orders is place since 2013. Children been in equal care since 2015. The oldest has been increasingly unhappy over at least the last 12 months with having to live with their father. They are showing signs of...
  3. E

    VIC Old case Paternity test result 1993 year. If Family court could give us copy that could be use for legal purpose.

    My solicitor in 1993 year gave me photocopy of result of DNA parentage test, didn,t know at that time to ask for original. I have original of Court order that declared my ex partner as the father. Father is not on Birth Certificate. My son would like to get from Court copy that could legaly used...
  4. N

    QLD 2 1/2 year old infringement.

    Hello, I am wondering if there is any time limit for the police to issue infringement notices as I have just received an infringement from 30 months ago. It was a red light camera infringement and it appears that I have driven through it when the wrong light changed. Thank you.
  5. J

    NSW Summons served on 16 year old

    Hi, can a summons to an adult be served to their child who is 16 years old? I was under the impression they could not be served on an individual under the age of 18 if the summons was not for the child. I also thought a summons had to be issued to the party on the documents and not to a third...
  6. B

    NSW Bankruptcy reducing to 1 year

    Hi, I heard bankruptcy default time may be reduced to 1 year instead of 3. When can this be possible? Thanks
  7. H

    QLD Is it legal to have sex with my 16 year old girlfriend if i am 19?

    It says in the legislation that age of consent is 16 but is that only for those under 18 or can a 16 year old consent with 19 year olds as well? Shes definitely 16. If you're a lawyer any help is appreciated or we could just wait until she gets older im in Queensland by the way.
  8. Sdrian98

    QLD Visa situation

    Hi Guys my name is [Redacted by Moderator - Personal Information]. I have recently graduated from my two year course in Heavy Diesel mechanics at Tafe Ashmore On the Gold Coast. Yesterday I have been offer a job position in a good company, however, they called me in morning and told me they...
  9. L

    NSW 13 year old will not go under a recovery order

    There is a recovery order to return my children to their older sister. My 13 year old is in fear of returning. He is threatening to run away. Can he refuse to go
  10. A

    NSW motorcycle sold with wrong incorrect year

    Hi, I bought a used motorcycle from a reputed dealership. The dealership advertised the motorcycle as 2011. The salesman also disclosed the details as a 2011. I bought the motorcycle next day and their paper work also states the motorcycle is 2011 model. They provided rego for 6 months. Now...