Welcome to September at Calendars.com—where the crisp air rolls in and autumn energy takes over. From pizza to Play-Doh, skyscrapers to superheroes, this month is packed with quirky holidays and cozy vibes. It’s the season of turning pages (in books and calendars) and savoring every moment.
September 1 – Ginger Cat Appreciation Day
Celebrate the orange fluffballs that steal hearts (and couches).
September 2 – Calendar Adjustment Day
A nod to the quirks of keeping time in order.
September 3 – National Skyscraper Day
Towering icons of ambition and steel.
September 4 – National Wildlife Day
Spotlight on the creatures that share our planet.
September 5 – National Cheese Pizza Day
Simple. Classic. Always welcome at the table.
September 6 – National Read a Book Day
Crack the spine, turn the page, escape the day.
September 7 – National Beer Lovers Day
A toast to lagers, ales, and everything hoppy.
September 8 – Star Trek Day
Beam up the nostalgia and boldly go celebrate.
September 9 – National Sudoku Day
Puzzle your way to satisfaction.
September 10 – National TV Dinner Day
Retro comfort food with a side of nostalgia.
September 11 – Patriot Day
A day of remembrance and reflection.
September 12 – National Video Game Day
Controllers up—let the games begin.
September 13 – Supernatural Day
Spooky, eerie, and just a little otherworldly.
September 14 – National Coloring Day
Sharpen those pencils—it’s time to unwind in color.
September 15 – National Double Cheeseburger Day
Two patties, double the delicious.
September 16 – National Play-Doh Day
Squish, shape, and sculpt your imagination.
September 17 – International Country Music Day
Fiddles, guitars, and stories set to song.
September 18 – U.S. Air Force Day
Honoring those who soar in service.
September 19 – Talk Like a Pirate Day
Ahoy, matey! Embrace your inner buccaneer.
September 20 – Batman Day
Gotham’s hero gets the spotlight.
September 21 – National New York Day
Skylines, bagels, and city grit.
September 22 – National Elephant Appreciation Day
Gentle giants with unforgettable presence.
September 23 – Innergize Day
Recharge, refocus, and fuel your best self.
September 24 – National Women’s Health & Fitness Day
Strong, balanced, and thriving.
September 25 – National Cooking Day
Whisk, sauté, and savor homemade joy.
September 26 – Save the Koala Day
Cuddle-worthy icons of conservation.
September 27 – International Astronomy Day
Look up and marvel at the cosmos.
September 28 – International Poke Day
Fresh bowls of flavor, island style.
September 29 – National Coffee Day
Liquid motivation, hot or iced.
September 30 – National Love People Day
Celebrate kindness, compassion, and connection.
September is colorful, cozy, and filled with reasons to celebrate. As leaves turn and days shorten, the calendar reminds us to keep joy—and maybe a slice of pizza—on the schedule.
