National Day Calendar Headquarters

Visit the home of celebration in Mandan, North Dakota!

National Day Calendar Headquarters is where thousands of celebrations come to life each year — and where the stories behind those celebrations are shared with millions of people every day through radio, television, digital media and social platforms.

From National Donut Day and National Coffee Day to hundreds of wonderfully unexpected celebrations, this is the place behind the calendar that encourages people everywhere to Celebrate Every Day®.

One of the most unique parts of visiting National Day Calendar Headquarters is seeing where our nationally distributed radio and television features are recorded.

This is the same studio where National Day Calendar produces daily and weekly features seen and heard across the United States.

And visitors don't have to just watch.

Step up to the microphone and record something for National Day Radio!

Share a favorite National Day, say hello from North Dakota, give a shoutout to friends or family, or simply tell the world how you like to Celebrate Every Day. Your recording may become part of National Day Radio and the ongoing celebration happening from Mandan to listeners everywhere.

It’s your chance to go from visitor to broadcaster.

Explore the story of National Day Calendar and discover how an idea that started in North Dakota grew into a nationally recognized celebration brand.

Visitors can learn about famous National Days, discover celebrations they never knew existed and get a behind-the-scenes look at how National Days become part of conversations, traditions and marketing campaigns across America.

Be sure to capture a photo at our Celebrate Every Day Wall, featuring hundreds of reasons to celebrate throughout the year.

You may even discover that your birthday shares the calendar with something wonderfully ridiculous.

You never know who you might run into while visiting National Day Calendar Headquarters.

Founder Marlo Anderson launched National Day Calendar in North Dakota and turned a simple idea — giving people more reasons to celebrate — into a nationally recognized brand that now reaches millions of people every day.

Marlo is also a broadcaster, entrepreneur and media personality whose radio and television work has been heard and seen across the country. He continues to work from the Mandan headquarters, where new celebrations are developed, broadcasts are recorded and plenty of unusual ideas somehow become real projects.

When schedules allow, visitors may have the chance to meet Marlo, take a photo, get something signed and hear some of the stories behind National Day Calendar — including how a North Dakota idea grew into a celebration movement recognized nationwide.

And if you catch him between recordings, there’s a pretty good chance he’ll have a story to tell.

Before you leave, browse Celebrate Every Day® merchandise and National Day Calendar items available at headquarters.

It’s a great place to pick up a souvenir, find a gift for the person who celebrates everything, or take a little piece of National Day Calendar home with you.

National Day Calendar reaches people across the country and around the world, but its home is right here in Mandan, North Dakota.

What began as a simple idea has grown into a celebration movement connecting families, communities, broadcasters, businesses and millions of people looking for another reason to enjoy the day.

So when you're traveling through North Dakota, stop by the place where the celebrations begin.

Tour the headquarters. Step into the studio. Get behind the microphone. And maybe hear yourself on National Day Radio.

Come see why in Mandan, North Dakota, we believe there’s always something worth celebrating.

National Day Calendar Headquarters
Celebrate Every Day®