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year

A year is the orbital period of a planetary body, for example, 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. In English, the abbreviations "y" and "yr" are commonly used ("a" is also used) for the unit of time, though its exact duration may be inconsistent.
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. M

    New year revolution

    So come on then as the title says what's your's? Mine is to drink more and get fatter :rockon2:
  2. Leo21

    Big fat quiz of the year

    Anyone watch this? It was the funniest thing I've seen for ages. Catch a repeat if you can.
  3. S

    NEW YEAR , new career

    Trade Careers any one interest ? lol pmsl :)
  4. B

    ideal logic plus - 7 year warrany - will it be extended

    Hi guys, just woundering if anyone knows if the 7 year off on logic plus range will continue in the new year or is that it? if it isnt continuing, anyone know what the warrantee period will go down to? also, whats stopping someone buying a logic plus in the new year and then telling ideal...
  5. G

    Everyone have a great Christmas and a happy New Year

    Wishing everyone a great Christmas and a even happier New Year. Hope Santa is good to you all and the beer flows freely. :yes:
  6. G

    Everyone have a great Christmas and a happy New Year

    Wishing everyone a great Christmas and a even happier New Year. Hope Santa is good to you all and the beer flows freely. :yes:
  7. P

    Thats it all done signing out until New Year

    Well that's it for me, now officially off for me Crimble break, Everything up to date, customers happy, bills paid and work booked in for next year, so Im going to hit the arm chair by the fire contented, just for once. Beer chilling nicley, manacles set up on the range for the wife, so she...
  8. G

    The UKPF once a year ANYTHING GOES thread!!!!!!!

    All the mods and admin team have come with an idea to have for ONE NIGHT ONLY....... A GREAT BIG LET YER HAIR DOWN NIGHT IN THE ARMS!!! Where ANYTHING goes, on this thread, but ONLY ON THIS THREAD, which is being created for this event and for ONE NIGHT. Bod will be setting up the thread so...
  9. M

    3rd year apprentice what should i know?

    Hi as the title says i have just started my third year in college but my new employer thinks i am way way behind with what i should know. Can anyone give me a rough idea what you would expect a person starting there third year to know plumbing wise. many thanks Ed
  10. T

    Hello - I've got a 40 year old Potterton Diplomat!

    Hi All, Thought I'd better come to a forum to get some advice, as to be honest I feel like I'm going a bit crosseyed with the advice so far from plumbers. Basically, I've just bought a 1920's semi detached 3 bed 2 storey 1 bathroom house in London, which amongst several cool period features...
  11. R

    It's that time of year again

    Who fancys a drinky?! It's my round! Only got a fiver in change tho so don't go mad!
  12. G

    Video of the year, watch this!!!!!

    Our good friend Andy after to much Grolsch at Bod's doo' Flexies!!!!!!! https://www.************/video/video.php?v=457903434248752
  13. M

    26 year old plumbing student from Leeds looking for experience on site for full NVQ 2

    Hi all my name is Mark and I’m currently studying a level 2 course in plumbing at Leeds College of Building. This is my second year at college as i have already passed a services engineering course in my first year. It was quite an easy course for me which covered mostly plumbing, but also...
  14. G

    New Year get together

    I understand that through various work and family commitments a lot of the members couldn't manage to Lee's engagement party to meet up with those of us that are going. I'm organising a get together in the New Year with date and venue still to be decided, but it will be THE event of 2013...
  15. J

    5 year old system,whats causing this crud?

    Hi all Any one know whats causing this.? Total new combi condensing system fitted August 2007 by large rated local firm. System flushed after fitting. Now on 2 only ground floor rads have this crud rusting the rad. Photos posted. Whats the cause. And whats the cure. Any thoughts appreciated...
  16. J

    It's that time of year again

    Is it just me who always goes quiet round this time of year, kids are on holiday, too much money spent on holidays i.e. People have time off so doing more DIY,and nobody wants to spend, And to make it even worse, the phone rings and some kid is reeling out his achievements and asking for...
  17. S

    NVQ 3 Plumber 29 trying to get back into trade after 4 year absence (Newcastle)

    I am a 29 year old male plumber looking to return to the industry after a four year absence. During this time I have spent two years travelling in Australia and since returning to the UK have been working as a tutor for a training provider. I am a hardworking, reliable and dedicated person with...
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