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Why does January 1st start the year? The New Calendar

Updated on October 20, 2011


The standard western calendar, the Gregorian calendar, started counting years with the presumed birth of Christ, and separates years into BC (Before Christ) and AD (Anno Domini, which is Latin for "the year of the Lord"). So this year is 2009 AD, meaning the year of the Lord 2009.

The Gregorian calendar has not been in use for 2,000 odd years, however. It replaced, over several hundred years in different places, the Julian Calendar.

Julian Calendar

This was introduced by Julius Caesar in 46 BC, because the system used previously had allowed "drift" in that the calculations were not exact and therefore the months of the year had moved according to the weather and the time the earth took to rotate once. The length of the individual months (such as 30 days for September, June and April, and 30 for March, December and August) was fixed at this time. The idea of a leap year every 4 years, where an extra day is added to one month, was also introduced at this time. The names of months were not all changed, however, which is why some months have names which derive from the old (pre-46BC) numbers. September, October, November and December come from the Latin numbers for 7, 8, 9, and 10, although the months are now the 9th, 10th, 11th and 12th in the year.

The year started, in some respects, on 1st January because it was on that day that the two consels, who ruled in Rome, took office. Years were numbered after the consels in charge. However, other Roman writers used 21st April as New Year's Day instead, taking that as the date of the founding of Rome.

Local use of the Julian calendar

Although many places and rulers other than Rome used the Julian calendar, they didn't all start a New Year on 1st January. A variety of other dates were used, including several in March and September.

New Year's Day in England

The 1st January was adopted as the first day of the year in England in 1752. Before that, the new year started on Lady Day, the 25th March. This is the date on which the Virgin Mary was told that she was to give birth to Christ.  In the same year, England became one of the last countries in Europe to ditch the Julian Calendar in favour of the Gregorian calendar.

Gregorian Reform

By the 16th century, the Julian calendar had also slipped a bit out of true. The Pope at the time, Gregory, promulgated the new Gregorian Calendar in the 1570s. It was quickly adopted by Catholic countries, and more slowly by protestant countries, such as England. This meant that for a couple of hundred years, the dates were different in different European countries.

In order to change from Julian to Gregorian, 10 extra days which had crept in through the addition, over centuries, of too many leap years, had to be missed out.  

Russia did not change over until after the October Revolution in 1917, when the Tzar was overthrown. The actual date of the revolution in the Gregorian calendar was November, but it was October in the Julian calendar.

The change-over in England

By the time England changed from Julian to Gregorian in 1752, 11 days had to be missed out. Wednesday  2nd September 1752 was, therefore, followed by Thursday, 14th September 1752, when the change was made.

The tax and banking year had been from 25th March on each year. This was not changed to 1st January, but the extra days were added. So from 1753, and to this day in England and Wales, the tax year starts on 5th April each year.


Orthodox Christian Religions

Although countries such as Russia have changed for civil purposes, many Christian Orthodox Churches still use the Julian Calendar. Thus, Christmas in Russia (and other countries, such as Greece, Serbia, and Georgia) is celebrated on 25th December in Julian terms, which is, at present, 7th January in the Gregorian Calendar. 


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    • DevBlue profile image


      7 years ago from Mauritius

      Nice informative Hub. I had published one on the subject from another angle a few months ago.

    • Moneylady profile image


      8 years ago from Texas

      Very good! I learned some new things today! Thanks

    • profile image


      8 years ago

      The paragraph headed 'Julian Calendar' contains an error. It states that there are 30 days in March, December and August.

    • LondonGirl profile imageAUTHOR


      9 years ago from London

      thank you - I'm glad you found it interesting.

    • First Glance profile image

      First Glance 

      9 years ago from Mumbai

      its good information for those who still don't know about the months...nice london girl, interesting hub.

    • LondonGirl profile imageAUTHOR


      9 years ago from London

      I guess January 1st is a bit of a blur for you, then!

    • packerpack profile image

      Om Prakash Singh 

      9 years ago from India, Calcutta

      Hey I never thought that so much could be known about 1st Jan then just booze and party a night before. Good hub

    • Denny Lyon profile image

      Denny Lyon 

      9 years ago from Baton Rouge, Louisiana, USA

      Thanks for drawing my attention over to your wonderful and informative hub, well done!  You have a new fan! Bookmarked it too.

    • RDHayes profile image


      9 years ago from Denver

      Misah, isn't it because December 31st. is the last day of the year? :P

    • Misha profile image


      9 years ago from DC Area

      Also, Russians celebrate New Year second time on January 13/14. In fact, many start celebrating Gregorian and celebrate till Julian :D

    • LondonGirl profile imageAUTHOR


      9 years ago from London

      Thanks Robin, glad you enjoyed it.

    • Robin Marie profile image


      9 years ago from USA

      Very interesting hub. I learned a lot!

    • LondonGirl profile imageAUTHOR


      9 years ago from London

      It's astonishing, really, that we keep our time the Roman way (-:

    • Jennifer Bhala profile image

      Jennifer Bhala 

      9 years ago from Upstate New York

      Time sure is an amazing phenomena.

    • LondonGirl profile imageAUTHOR


      9 years ago from London

      Thanks Lgali!

    • Lgali profile image


      9 years ago

      very informative hub

    • LondonGirl profile imageAUTHOR


      9 years ago from London

      I agree - just one example among many!

    • anjalichugh profile image


      9 years ago from New York

      Greeks & Romans have had a profound place in the world history as far as their contributions are concerned. Calender is one of them.


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