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Home Astronomy EarthSky | Why does the New Year begin on January 1?

EarthSky | Why does the New Year begin on January 1?

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EarthSky | Why does the New Year begin on January 1?


Pleased New Yr! Picture by way of Pexels/ Engin Akurt.

Our celebration of New Year’s Day on January 1 is a human-made creation. It’s not exactly mounted by any pure or seasonal marker. It’s a civil occasion, not one outlined by nature. But, for us within the Northern Hemisphere – the place daylight not too long ago ebbed to its lowest level and the times are beginning to get longer once more – there’s a sense of rebirth within the air. New Yr’s resolutions, anybody?

So the place does the New Yr’s Day idea come from?

It stems from an historic Roman customized, the feast of the Roman god Janus. He was the god of beginnings, gates, transitions, time, duality, doorways, passages, frames, and endings. That is additionally the place the identify for the month of January comes from, since Janus was depicted as having two reverse faces. One face appeared again into the previous, and the opposite peered ahead to the longer term.

Likewise, on January 1, we glance again on the 12 months that simply ended and ahead to the brand new 12 months forward.

To rejoice the brand new 12 months, the Romans additionally made guarantees to Janus. The custom of New Yr’s resolutions stems from this historic customized. On January 1, because the 12 months started, it was customary to change cheerful phrases of fine needs. Shortly afterwards, on January 9, the rex sacrorum – a priesthood related to the Roman Senate – supplied the sacrifice of a ram to Janus.

Learn more about Janus.

Immediately, though many do rejoice New Yr’s Day on January 1, some cultures and religions have totally different new 12 months dates.

The traditional Roman god Janus. Picture by way of Wikimedia.

Available now! 2023 EarthSky lunar calendar. A unique and beautiful poster-sized calendar showing phases of the moon every night of the year! Makes a great gift.

Rosh Hashanah: the Jewish New Yr

For instance, Jews use a lunar calendar and rejoice the New Yr within the fall on Rosh Hashanah, the primary day of the month of Tishri, which is the seventh month of the Jewish 12 months. This date normally happens in September, because it did in 2022. Much like different cultures’ New Yr’s Day, the two-day vacation is each a time of rejoicing and of significant introspection, a time to rejoice the completion of one other 12 months whereas additionally taking inventory of 1’s life and searching forward.

Learn more about Rosh Hashanah.

Challah, a standard Jewish bread, eaten for Rosh Hashanah. Picture by way of Wikimedia.

Chinese language New Yr

There’s additionally the well-known Chinese New Year, also called the Lunar New Year, celebrated for weeks in January or early February. The Chinese language New Yr is an important of Chinese language holidays. International locations in Southeast Asia rejoice it together with China, Thailand, Indonesia, Malaysia, and the Philippines. It’s additionally celebrated in Chinatowns and Asian properties all over the world, the place it’s thought of a time to honor deities and ancestors and to be with household. The occasion at all times sparks a rush of journey that the New York Instances has known as the world’s largest annual human migration.

Final 12 months’s Chinese language New Yr celebrations fell on February 1, 2022. It was the 12 months of the Tiger. In 2023, the Chinese language New Yr will start on Saturday, January 22, 2023. It’ll be the 12 months of the Rabbit.

Learn more about the Chinese New Year.

Our buddy Matthew Chin in Hong Kong created this graphic and wrote: “The 2 Chinese language characters are the identical. It means ‘blessing,’ a hope that different individuals will get good luck. It’s generally used throughout Lunar New Yr. The crimson background can be a form of ‘good’ as Chinese language individuals use crimson to signify ‘good luck.’” Thanks, Matthew!

Perihelion round January 1

By the best way, along with the longer days right here within the Northern Hemisphere, there’s one other astronomical prevalence round January 1 annually that’s additionally associated to Earth’s 12 months, as outlined by our orbit across the sun. That’s, Earth’s perihelion – or closest level to the sun – occurs yearly in early January. In 2023, perihelion comes on January 4.

Read more about 2023’s perihelion

For 2023, the Northern Hemisphere winter stretches from December 21, 2022, to March 20, 2023. Perihelion happens inside this era, on January 4, 2023. Since Earth strikes quicker the nearer it’s to the sun, the Northern Hemisphere winter interval is shorter by nearly 5 days in comparison with the Northern Hemisphere summer season when the Earth is shifting extra slowly in its orbit. Chart by way of EarthSky.

Historical past of New Yr’s Day

January 1 hasn’t at all times been New Yr’s Day.

Up to now, some New Yr’s celebrations befell at an equinox, a day when the sun is above Earth’s equator and night time and day are equal in size. In lots of cultures, the March or vernal equinox marks a time of transition and new beginnings, and so cultural celebrations of a brand new 12 months had been pure for that equinox.

The September or autumnal equinox additionally had its proponents for the start of a brand new 12 months. For instance, the French Republican calendar – carried out through the French Revolution and used for about 12 years from late 1793 to 1805 – began its 12 months on the September equinox.

The Greeks celebrated the brand new 12 months on the winter solstice, the shortest day of the 12 months.

Pleased 2023, everybody!

Backside line: We rejoice New Yr’s Day on January 1 by custom. Our trendy New Yr’s Day celebration stems from the traditional two-faced Roman god Janus, after whom the month of January can be named.



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