Every day is a social media holiday. And we’ll never get tired of saying that because we’re, in fact, stating the obvious.
Did you know that March was named for the Roman god of war, Mars? At that period, the blooming month was the best time of year to resume military campaigns that had been interrupted by winter.
But don’t worry, we’re not going to war! However, we always welcome Spring, as March brings the vernal equinox and the return of Daylight Saving Time!
In fact, Spring has sprung even on our Social Media Holiday Calendar this year! We have covered 150+ important social media holidays that are guaranteed to get your post ideas flowing and boost your social engagement.
Publer’s Free Social Media Holiday Interactive Calendar
Looking for an easier way to stay on top of social media holidays? Check out Publer’s Social Media Holiday Interactive Calendar! This free tool lists hundreds of holidays with their corresponding hashtags, making it simple to discover, plan, and schedule engaging content.

Visit Publer’s Social Media Holiday Calendar to explore these holidays, craft posts, and schedule them directly to your socials. With this tool, creating timely, relevant content has never been easier.
Some March Holidays For Engaging Content Ideas
March 4: National Grammar Day – #NationalGrammarDay
This holiday celebrates the importance of proper grammar and language. Celebrate National Grammar Day by brushing up on your grammar skills, writing a short essay on the importance of grammar, or posting an update about grammar on social media.
Don’t forget to support the cause and hashtag #NationalGrammarDay in all your posts!
March 8: International Women’s Day – #IWD2027
International Women’s Day is a global celebration of the social, economic, cultural, and political achievements of women. This day is used to recognize the progress of women and promote gender equality. It is celebrated worldwide with events, parades, and other activities.
Celebrate International Women’s Day by honoring a female role model in your life, promoting female-owned businesses, or posting a message of support to the women in your life.
March 19: World Sleep Day – #WorldSleepDay

This holiday is dedicated to the importance of getting a good night’s sleep. Celebrate World Sleep Day by getting an early night’s sleep, taking a nap during the day, or updating your social media with tips for getting a better night’s sleep.
Organizers of World Sleep Day also encourage people to spread awareness about the importance of sleep and to raise funds for sleep-related research and educational projects.
Use the hashtag #WorldSleepDay to spread the word about the importance of sleep!
March 20: International Day of Happiness – #HappinessDay

International Happiness Day is an international holiday that is celebrated to promote happiness and well-being around the world. This day is used to spread positivity, promote kindness, and encourage people to be kind and happy to each other.
The day was established in 2012 by the United Nations General Assembly to recognize the importance of happiness and well-being in the lives of people worldwide. It has since been observed annually on March 20th.
Activities during this day include spreading kindness, helping others, volunteering, and celebrating with family and friends. People are encouraged to take some time to reflect on what makes them happy and to help make others happy too.
The day is also seen as an opportunity to raise awareness on social media about mental health issues and inspire people to improve their mental and physical health.
March 22: World Water Day – #WorldWaterDay
World Water Day is an international holiday that is celebrated to focus attention on the importance of water and sustainable water management. It was first established by the United Nations in 1993 and has since grown to become one of the most widely celebrated events in the world. The day is often marked with events such as clean-up drives, educational activities, and water-related projects.
This day is used to promote awareness of the water crisis in many parts of the world and to promote access to safe and clean water for all.
By raising awareness of the importance of water in your socials, you can help to ensure that water is used more responsibly and efficiently.
March 23: National Puppy Day – #NationalPuppyDay

This holiday celebrates puppies and the unconditional love they bring to our lives. Celebrate National Puppy Day by adopting a puppy, posting photos of your pup on social media, or helping out at an animal shelter in your local community.
If you don’t have the possibility or time, you can still gather online donations and raise funds for a shelter or charity that helps puppies in need.
You can use the hashtag #NationalPuppyDay to spread awareness and share your puppy photos.
Start Preparing Content With Publer Now!
Take advantage of this month’s Social Media Holiday Calendar and schedule content tailored to your business and industry.
Use Publer to Get The Best of The Holidays
Publer is a powerful social media management tool that can help you take your content marketing strategy to the next level by leveraging social media holidays. Here are some additional tips and tricks to help you make the most out of Publer’s Social Media Holiday Calendar:
Plan Ahead
The key to successful content marketing is planning ahead.
You can find all relevant holiday hashtags on each day of the year, thanks to the Calendar view on your Publer account. Click on each day to select your favorite hashtags & prepare new posts.
Take the time to research upcoming holidays and events relevant to your business, and create a content calendar outlining your posts, hashtags, and messaging for each day.

Capture Attention with Unique Images & Copy
With Publer AI Assist, you should never fear the absence of new ideas. In just a few clicks, you can use AI to generate images and text as if you have hired your own personal content creator.
You can also design unique photo and/or video illustrations using VistaCreate (Crello) and Canva within the composer. No need for extra tabs.
Use Publer’s Analytics to Track Progress
Publer provides detailed analytics to help you track your progress and see which posts perform best. It can also calculate your best times to post so that you can take advantage of your peak hours.
Use this information to optimize your content strategy and improve your engagement rates.
Simplify Your Content Planning with Publer
With the most important holidays highlighted in our Social Media Holiday Calendar for March 2027, you’ll never run out of inspiration. Plus, all March holidays are already integrated into Publer’s virtual calendar! Simply click on a hashtag, and a post editor will open to help you craft and schedule content instantly.

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