Epiphany observed on January 7 is a public holiday in most Spanish regions whenever January 6 is on a Sunday.

Epiphany observed (Many regions)

The holiday is also known as "Dia de la Revolución" is a celebration in Cuba of the anniversary of the victory of the revolution which established the present government in Cuba. The previous president fled the country on December 31st, 1958. The holiday is celebrated on January 1st every year.

Triumph of the Revolution - Cuba

Triumph of the Revolution

New Year's day is a day in which a new calendar year begins and the calendar's year count increases by one. The holiday is typically celebrated according to the Gregorian calendar new year day as it is the most widely used calendar.

New Year's Day

National Science Fiction Day is unofficially celebrated by many science fiction fans in the United States on January 2, which corresponds with the official birthdate of famed science fiction writer Isaac Asimov.

Science Fiction Day

New Year Holiday

January 2 is an annual bank holiday and the last day of the Hogmanay (New Year) celebrations in Scotland. 

2nd January (Scotland)

Independence day is a national holiday observed annually in Myanmar every 4 January. The date celebrates Myanmar's Declaration of Independence from the United Kingdom on 4 January 1948.

Independence Day - Myanmar

World Braille Day celebrates the birthday of Braille inventor, Louis Braille and recognizes his contributions in helping blind and visually impaired people to read and write.

World Braille Day

Trivia day is the perfect day to share all of those silly little facts that almost nobody knows, making this day a fun and interesting one to spend with friends or family.

National Trivia Day

This holiday falls on the birthday of Reddi-wip founder Aaron “Bunny” Lapin.  Aaron who invented Reddi-wip in 1948,  was born on January 5, 1914, and died on July 10, 1999.

National Whipped Cream Day

Epiphany is a public holiday in Spain and is one of the most important Christian festivals, as it shows how God comes to His people and reveals His salvation to the world.

Epiphany

Epiphany, also Theophany, Denha, Little Christmas, or Three Kings' Day, is a Christian feast day that celebrates the revelation of God incarnate as Jesus Christ.

Epiphany/Three Kings Day

Ramadan is the ninth month of the Islamic calendar, observed by Muslims worldwide as a month of fasting, prayer, reflection and community. The annual observance of Ramadan is regarded as one of the Five Pillars of Islam and lasts twenty-nine to thirty days.

First Day of Ramadan (JHR, KDH, MLK)

Coptic Christmas is observed on what the Julian Calendar labels 25 December, a date that currently corresponds with 7 January on the more widely used Gregorian Calendar.

Coptic Christmas - Egypt

National Bobblehead Day is observed annually on January 7.   This day recognizes a day of celebration for all spring-connected head bobbing figurines.

National Bobblehead Day

On the 256th day of each year, this day honors all programmers, as there is hardly a person in the civilized world who doesn't benefit from their work. The number 256 is distinct to programmers. Represented by an eight-bit byte 256 equals 2 to the eighth. It is officially recognized in Russia.

International Programmers Day

January 9 is Static Electricity Day a day to honor this unexpected, mostly unpleasant, and sometimes hair rising phenomenon.

National Static Electricity Day

National Cut Your Energy Costs Day encourages people to look for ways to reduce energy costs and save on their energy bills.

National Cut Your Energy Costs Day

International #ThankYouDay is an annual celebration observed on January 11th of every year. Often we forget to tell a thank you as is taken for granted.

International Thank-You Day

World Sketchnote Day began in 2016 by creators Mike Rohde and Mauro Toselli. These two people alongside a small group of designers and producers created the company, called Sketchnote Army, to help showcase sketchnotes and their artists from around the world.

World Sketchnote Day

Bodhi Day is the Buddhist holiday that commemorates the day that the historical Buddha, Siddhartha Gautama (Shakyamuni), experienced enlightenment, also known as bodhi in Sanskrit and Pali.

Bodhi Day

Kiss A Ginger Day is an unofficial holiday that is celebrated all over the world on January 12th. The purpose of this holiday is to show that special ginger in your life just how much you care by giving them a kiss, either on the cheek or on the lips.

Kiss A Ginger Day

National Sticker Day is observed annually on January 13. This is a day to celebrate all things stickers, from the custom printing of them to sharing stickers. Every sticker has a story.

National Sticker Day

National Dress Up Your Pet Day is observed each year on January 14.  Pets do become part of one’s family.  This day was created to make it a special day for them, to celebrate them and also to support the pet fashion community.

Dress Up Your Pet Day

The Orthodox New Year, also known as the Old New Year, is observed on January 14 in Ukraine. 

Orthodox New Year

Coming of age day  is a Japanese holiday held annually on the second Monday of January. It is held in order to congratulate and encourage all those who have reached or will reach the age of majority between April 2 of the previous year and April 1 of the current year.

Coming of Age Day - Japan

National Hat Day is an unofficial holiday which falls annually on January 15th. It celebrates one of the oldest human accessories.

Hat Day

Nothing Day has been commemorated since 1973. The day is literally about doing nothing at all, placing it in a similar vein to other such surreal non-occasions as an Un-Birthday or Buy Nothing Day. There is absolutely no purpose or intended structure for this pointless celebration.

Nothing Day

January 17 or Ditch New Year’s Resolution Day is popularly thought to be the day when a large number of people abandon their New Year’s resolutions.

Ditch New Year’s Resolutions Day

January 18 is Thesaurus Day. Impress your family and friends with big, complicated, and fancy sounding words to celebrate this lexicographic holiday.

Thesaurus Day

Tu Bishvat is a Jewish holiday occurring on the 15th day of the Hebrew month of Shevat. It is also called "Rosh HaShanah La'Ilanot", literally "New Year of the Trees." In contemporary Israel, the day is celebrated as an ecological awareness day, and trees are planted in celebration.

Tu Bishvat - Jewish

National Popcorn Day is annually observed January 19th. This time-honored treat can be sweet or savory, caramelized, buttered or plain, molded into a candied ball or tossed with nuts and chocolate. However, it is enjoyed, enjoy it on National Popcorn Day, January 19th.

Popcorn Day

It's easy to celebrate this special day. Set out a tray of several varieties of  your favorite cheese and dig in. Having a cheese tasting party with your friends, will make this day a truly memorable one.  And, don't forget the wine. Cheese goes great with cheese.

Cheese Lovers Day

The third Sunday in January is annually celebrated as World Religion Day. It was established by the National Spiritual Assembly of the Baha’is of the United States in 1950 as a way to encourage interfaith understanding.

World Religion Day

Thaipusam or Thaipoosam, also known as Thaipooyam in Kerala, is a festival celebrated by the Tamil and Malayali communities on the full moon in the Tamil month of Thai (January/February), usually coinciding with Pushya star, known as Poosam in Tamil and Pooyam in Malayalam.

Thaipusam (Many regions)

Martin Luther King Jr. Day is an American federal holiday marking the birthday of Martin Luther King Jr. It is observed on the third Monday of January each year, which is around King's birthday, January 15.

Martin Luther King Jr. Day

Unity Day is a Ukrainian observance that commemorates the Treaty of Unity signed on January 22, 1919.  

Ukrainian Unity Day

Celebration Of Life Day is when we take a step back and truly appreciate our children and grandchildren. Granted, some may do this on an everyday basis, but it’s an opportunity to look at our young ones’ lives from a different angle.

Celebration of Life Day

Nuzul Al-Quran is a Muslim holiday during the holy month of Ramadan, on which is celebrated at the beginning of the revelation of the Quran to the Prophet Muhammad.

Nuzul Al-Quran (Most regions)

Day of Saint Ildefonso (Toledo)

National Pie Day is an annual celebration of pies that occurs annually in the United States on January 23. It started in the mid-1970s by Boulder, Colorado nuclear engineer, brewer and teacher Charlie Papazian after he declared his own birthday, January 23, to be National Pie Day.

National Pie Day

National Compliment Day is an unofficial holiday which falls annually on January 24th. The purpose of this holiday is to say something nice to your friends, family, and co-workers.

National Compliment Day

Tatiana Day, or Tatyana Day, is a Ukrainian observance named after a Christian martyr as well as the date a decree was signed to establish a university in Moscow, Russia. 

Tatiana Day

Opposite Day, also known as National Opposite Day in the United States, is a holiday which is celebrated on January 25th by doing things in the opposite way in which they should be done.

Opposite Day

Australia Day is the official national day of Australia. Celebrated annually on 26 January, it marks the anniversary of the 1788 arrival of the First Fleet of British ships at Port Jackson, New South Wales, and the raising of the Flag of Great Britain at Sydney Cove by Governor Arthur Phillip.

Australia Day

Annually held on January 26, International Customs Day (ICD) recognizes the role of custom officials and agencies in maintaining border security. It focuses on the working conditions and challenges that customs officers face in their jobs.

International Customs Day

Republic Day honours the date on which the Constitution of India came into effect on 26 January 1950 replacing the Government of India Act as the governing document of India.

Republic Day

World Leprosy Day is annually observed around the world on the last Sunday of January. The day was initiated in 1954 by French philanthropist, Raoul Follereau, as a way to raise global awareness of this deadly ancient disease and call attention to the fact that it can be prevented, treated and cured

World Leprosy Day

National Geographic day is an unofficial holiday that is celebrated to commemorate the founding of the National Geographic magazine, which became famous initially due to its balanced portrayal of North America compared to the countries behind the iron curtain.

National Geographic Day

Data Privacy Day is an international holiday that occurs every 28 January. The purpose of Data Privacy Day is to raise awareness and promote privacy and data protection best practices. It is currently observed in the United States, Canada, Israel and 47 European countries.

Data Privacy Day

Auckland Anniversary Day is a public holiday observed in the northern half of the North Island of New Zealand, being the area's provincial anniversary day. It is observed throughout the historic Auckland Province, even though the provinces of New Zealand were abolished in 1876.

Auckland Anniversary Day

With the advent of digital entertainment, the common puzzle may be falling by the wayside. Puzzle Day is your chance to go back to basics; do a jigsaw, solve a crossword or buy a Rubik’s Cube and frustrate your friends!

Puzzle Day

The day takes place each year so that people can listen to what they have as their recorded greeting for their voicemail and home answering machines, and replace any that are "ridiculous" and "annoying".

Inane Answering Message Day

Laylat al-Qadr, variously rendered in English as the Night of Decree, Night of Power, Night of Value, Night of Destiny, or Night of Measures, is, in Islamic belief, the night when the first verses of the Quran were revealed to the Islamic prophet Muhammad.

Laylatul Qadr

Mad Magazine artist Don Martin created the idea of Gorilla Suit Day for a 1963 comic strip in which a character mocks the holiday and is then assaulted by gorillas and people in gorilla suit