| National Clean Up Your Computer Month | Special Interest | Technology |
| Earth's Rotation Day | Cause | Special Interest, Technology |
| World Typing Day | Special Interest | Educational, Technology |
| Balloon Ascension Day | Fun | Activities, Historical, Technology |
| National Cut Your Energy Costs Day | Cause | Environment, Technology |
| Learn Your Name In Morse Code Day | Special Interest | Activities, Historical, Technology |
| World Sketchnote Day | Special Interest | Educational, Fun, Technology |
| Public Radio Broadcasting Day | Arts & Entertainment | Historical, Technology |
| Wikipedia Day | Special Interest | Educational, Technology |
| National Without a Scalpel Day | Health | Educational, Technology |
| Camcorder Day | Special Interest | Hobby, Technology |
| International Mobile Phone Recycling Day | Special Interest | Conservation, Technology, Wildlife |
| Macintosh Computer Day | Arts & Entertainment | Appreciation, Brand, Technology |
| Data Privacy Week | Special Interest | Educational, Safety, Technology |
| Dental Drill Appreciation Day | Special Interest | Appreciation, Technology |
| Lotus 1-2-3 Day | Special Interest | Educational, Technology, Work |
| Data Privacy Day | Special Interest | Awareness, Lifestyle, Technology |
| Thank a Plugin Developer Day | Special Interest | Appreciation, Careers, Technology |
| Free Open Source Software Month | Special Interest | Technology |
| National Care About Your Indoor Air Month | Special Interest | Awareness, Educational, Technology |
| Change Your Password Day | Special Interest | Awareness, Educational, Technology |
| Facebook's Birthday | Appreciation | Birthdays, Friendship, Technology |
| National Weatherperson's Day | Appreciation | Career, Technology |
| National Cut the Cord Day | Special Interest | American, Technology |
| Be Electrific Day | Special Interest | Appreciation, Technology |
| International Day of Women and Girls in Science | Special Interest | Careers, Technology, Women |
| National Inventors' Day | Special Interest | Environment, Technology |
| National Clean Out Your Computer Day | Special Interest | Technology |
| Love Data Week | Special Interest | Fun, Technology |
| National Break Up With Your Carrier Day | Special Interest | Brand, Technology |
| National Internet Friends Day | Special Interest | Friendship, Technology |
| Safer Internet Day | Special Interest | Safety, Technology |
| World Radio Day | Special Interest | Technology |
| Innovation Day | Special Interest | Appreciation, Career, Technology |
| Analog to Digital TV Day | Special Interest | American, Pop Culture, Technology |
| National Battery Day | Special Interest | Educational, Technology |
| Diesel Engine Day | Special Interest | Hobby, Technology |
| Linus Pauling Day | Special Interest | Appreciation, Health, Technology |
| National Science Day | Special Interest | Appreciation, Educational, Technology |
| Rare Disease Day | Health | Technology |
| Digital Learning Day | Special Interest | Educational, Technology |
| Expanding Girls' Horizons in Science and Engineering Month | Special Interest | Educational, Technology, Women |
| Global Day of Unplugging | Special Interest | Technology |
| Teen Tech Week | Special Interest | Fun, Technology |
| Global Day of the Engineer | Special Interest | Appreciation, Careers, Technology |
| International Open Data Day | Special Interest | Awareness, Technology |
| Reel Film Day | | Movie, Technology |
| World Information Architecture Day | Special Interest | American, Educational, Technology |
| Stop Bad Service Day | Special Interest | Shopping, Technology |
| Alexander Graham Bell Day | Appreciation | Canadian, Historical, Technology |
| National Retro Video Game Day | Arts & Entertainment | Appreciation, Hobby, Technology |
| National Science and Engineering Week | Appreciation | Educational, Technology |
| National Dish Washer Appreciation Day | Appreciation | Technology |
| Check Your Batteries Day | Cause | Awareness, Safety, Technology |
| Mario Day | Arts & Entertainment | Activities, Fun, Technology |
| National Landline Telephone Day | Fun | Activities, Lifestyle, Technology |
| National Peel Day | Special Interest | Awareness, Technology |
| National No-Code Day | Special Interest | Technology |
| World Day Against Cyber Censorship | Cause | Awareness, Technology |
| Genius Day | Special Interest | Birthdays, Historical, Technology |
| No Selfies Day | Fun | Funny, Pop Culture, Technology |
| Robert Goddard Day | Appreciation | American, Appreciation, Technology |
| National Biodiesel Day | Cause | Environment, Technology |
| National 3-D Day | Special Interest | Appreciation, Technology |
| National Automatic Door Day | Special Interest | Technology |
| Big Bang Day | Special Interest | Education, Historical, Technology |
| Education Freedom Day | Special Interest | Educational, International, Technology |
| Twitter Day | Special Interest | American, Pop Culture, Technology |
| Near Miss Day | Special Interest | Environment, Historical, Technology |
| World Meteorological Day | Special Interest | Environment, Technology |
| National Virtual Vacation Day | Special Interest | Lifestyle, Technology |
| NanoDays | Special Interest | Education, Technology |
| National Bunsen Burner Day | Special Interest | Appreciation, Technology |
| World Backup Day | Special Interest | Technology |
| National Flash Drive Day | Special Interest | Technology |
| National Teflon Day | Special Interest | Cooking, Technology |
| National Robotics Week | Special Interest | Careers, Technology |
| Public Television Day | Appreciation | Appreciation, Lifestyle, Technology |
| Edinburgh Science Festival | Special Interest | Activities, Technology |
| National Eight Track Tape Day | Arts & Entertainment | Music, Technology |
| National Marketing Operations Appreciation Day | Special Interest | Appreciation, Careers, Technology |
| International Day for Human Space Flight | Special Interest | Educational, Historical, Technology |
| Yuri's Night | Special Interest | Educational, Historical, Technology |
| Foursquare Day | Special Interest | Obscure, Technology |
| Neurodiagnostic Week | Health | Awareness, Careers, Technology |
| National I.T. Service Provider Day | Appreciation | American, Technology, Work |
| National Email Day | Special Interest | Technology, Work |
| World Laboratory Day | Cause | Appreciation, Careers, Technology |
| International Girls In ICT Day | Special Interest | Careers, Technology, Women |
| National DNA Day | Health | Technology |
| National Telephone Day | Special Interest | Technology |
| Alien Day | Special Interest | Awareness, International, Technology |
| National Static Cling Day | Special Interest | Educational, Technology |
| Richter Scale Day | Special Interest | Historical, Obscure, Technology |
| International Marconi Day | Special Interest | Appreciation, Historical, Technology |
| Morse Code Day | Special Interest | Appreciation, Historical, Technology |
| National Pneumatics Day | Special Interest | American, Appreciation, Technology |
| Electromagnetic Radiation Awareness Month | Special Interest | Awareness, Health, Technology |
| National Comfort Month | Special Interest | Activities, Lifestyle, Technology |
| National Inventors Month | Special Interest | Activities, Technology |
| National San Architect Month | Special Interest | American, Awareness, Technology |
| Steelmark Month | Special Interest | American, Awareness, Technology |
| CSS Reboot Day | Special Interest | Appreciation, Technology |
| Screen Free Week | Special Interest | Awareness, Technology |
| National Public Radio Day | Arts & Entertainment | Appreciation, Technology |
| National SAN Architect Day | Appreciation | American, Technology |
| World Password Day | Special Interest | Technology |
| National Astronaut Day | Special Interest | Appreciation, Technology |
| International Drone Day | Special Interest | International, Technology |
| Beaufort Scale Day | Special Interest | Appreciation, Technology |
| National Technology Day | Special Interest | Historical, Indian Holidays, Technology |
| Data Innovation Day (Data Innovation Summit) | Special Interest | Educational, Technology |
| National Odometer Day | Special Interest | Appreciation, Obscure, Technology |
| National Train Day | Special Interest | Awareness, Historical, Technology |
| Online Romance Day | Relationship | Appreciation, Love, Technology |
| International Day of Light | Special Interest | Appreciation, Technology |
| World Information Society Day | Special Interest | Awareness, International, Technology |
| Global Accessibility Awareness Day | Cause | Awareness, Safety, Technology |
| National Defense Transportation Day | Federal | Appreciation, Technology, Work |
| International Day for Biological Diversity | Cause | Conservation, Environment, Technology |
| Geek Pride Day | Arts & Entertainment | Hobby, Pop Culture, Technology |
| National VTuber Day | Special Interest | Music, Technology |
| Loomis Day | Special Interest | Technology |
| National E-Bike Day | Special Interest | Hobby, Technology |
| Autonomous Vehicle Day | Special Interest | Appreciation, Lifestyle, Technology |
| Web Designer Day | Special Interest | Careers, Technology |
| Vision Research Month | Health | Awareness, Educational, Technology |
| National Automotive Service Professional Week | Appreciation | Appreciation, Technology, Work |
| National VCR Day | Special Interest | Appreciation, Movie, Technology |
| National Ballpoint Pen Day | Special Interest | Appreciation, Technology |
| National EHS Awareness Day | Health | Awareness, Safety, Technology |
| National Email Week | Special Interest | Appreciation, Technology |
| Nature Photography Day | Special Interest | Activities, Environment, Technology |
| National FreeBSD Day | Appreciation | Educational, Technology |
| National Celluma Light Therapy Day | Health | Awareness, Technology |
| National HVAC Tech Day | Appreciation | Technology |
| National Typewriter Day | Special Interest | Appreciation, Books, Technology |
| Women in Engineering Day | Special Interest | Careers, Technology, Women |
| Color TV Day | Special Interest | American, Fun, Technology |
| National Barcode Day | Special Interest | Historical, Technology |
| World Refrigeration Day | Special Interest | Appreciation, Educational, Technology |
| National Waffle Iron Day | Food & Beverage | Breakfast, Sweet Food, Technology |
| International Asteroid Day | Special Interest | International, Obscure, Technology |
| National Meteor Watch Day | Special Interest | Hobby, Technology |
| Social Media Day | Special Interest | Activities, Mental Health, Technology |
| National Cell Phone Courtesy Month | Special Interest | Appreciation, Technology |
| National Television Heritage Day | Arts & Entertainment | Historical, Pop Culture, Technology |
| Smart Irrigation Month | Special Interest | Awareness, Environment, Technology |
| Air Conditioning Appreciation Day | Appreciation | American, Lifestyle, Technology |
| National Air Traffic Control Day | Special Interest | Awareness, Career, Technology |
| Take Your Webmaster to Lunch Day | Special Interest | Appreciation, Career, Technology |
| Math 2.0 Day | Special Interest | Appreciation, Educational, Technology |
| Amazon Prime Day | Fun | Shopping, Summer, Technology |
| National Break Free From the Big Three Day | Special Interest | Technology |
| National Tape Measure Day | Special Interest | Appreciation, Technology |
| Artificial Intelligence Appreciation Day | Appreciation | Educational, Technology |
| Wrong Way Corrigan Day | Special Interest | American, Historical, Technology |
| National Dapper Your Data Day | Special Interest | Awareness, Safety, Technology |
| National Moon Day | Special Interest | American, Historical, Technology |
| National Thermal Engineer Day | Special Interest | Career, Technology, Work |
| Cross Atlantic Communication Day | Special Interest | Technology |
| System Administrator Appreciation Day | Special Interest | Appreciation, Technology, Work |
| World Wide Web Day | Special Interest | Appreciation, Technology |
| National CAD Day | Special Interest | Appreciation, Educational, Technology |
| Matice Slovenska Day | Special Interest | Appreciation, Awareness, Technology |
| National Dash Cam Day | Special Interest | Awareness, Safety, Technology |
| International Biodiesel Day | Special Interest | Awareness, Environment, Technology |
| Shop Online for Groceries Day | Food & Beverage | American, Technology |
| IBM PC Day | Appreciation | Appreciation, Brand, Technology |
| National Science Week | Arts & Entertainment | Awareness, Educational, Technology |
| World Photo Day | Arts & Entertainment | Friendship, Technology |
| National Aviation Week | Special Interest | Educational, Historical, Technology |
| National Radio Day | Special Interest | Technology |
| National Composites Week | | Environment, Technology |
| Cheap Flight Day | Fun | Activities, Technology |
| Find Your Inner Nerd Day | Special Interest | Brand, Fun, Technology |
| National Ride The Wind Day | Special Interest | Activities, Sports, Technology |
| Pluto Demoted Day | Special Interest | Historical, Technology |
| National WebMistress Day | Special Interest | Careers, Technology, Women |
| Race Your Mouse Around the Icons Day | Fun | Activities, Fun, Technology |
| Save Your Photos Month | Special Interest | Activities, Fun, Technology |
| Google Commemoration Day | Special Interest | Appreciation, Technology |
| National Video Games Day | Special Interest | Technology |
| Programmers Day | Appreciation | Career, Technology, Work |
| National Coding Week | Special Interest | Education, Technology |
| National Google.com Day | Appreciation | Appreciation, Technology, Work |
| National Online Learning Day | Special Interest | Educational, Technology |
| World Engineers Day | Appreciation | Technology, Work |
| European Mobility Week | Special Interest | Activities, Awareness, Technology |
| National Day of Civic Hacking | Special Interest | Technology |
| National IT Professionals Day | Appreciation | Career, Technology |
| International NFT Day | Arts & Entertainment | Brand, Technology |
| Education Technology Day | Special Interest | Awareness, Educational, Technology |
| International Right To Know Day | Cause | Safety, Technology |
| International Podcast Day | Special Interest | Technology |
| Save Your Photos Day | Special Interest | Awareness, Technology |
| Medical Ultrasound Awareness Month | Health | Awareness, Health, Technology |
| National Cybersecurity Awareness Month - October | Special Interest | Awareness, Safety, Technology |
| CD Player Day | Arts & Entertainment | Music, Technology |
| Change A Light Day | Special Interest | Conservation, Environment, Technology |
| Model T Day | Special Interest | Historical, Technology |
| National Techies Day | Special Interest | Hobby, Technology |
| Inbox Zero Day | Special Interest | Technology, Work |
| Manufacturing Day | Special Interest | Technology |
| National Manufacturing Week | Special Interest | Appreciation, Technology |
| National LED Light Day | Special Interest | Environment, Technology |
| National Digitool Day | Special Interest | Fun, Technology |
| National Online Bank Day | Special Interest | Financial, Technology |
| Digital Parenting Week | Relationship | Children, Parents, Technology |
| ADA Lovelace Day | Appreciation | Educational, Technology |
| National Motorcycle Ride Day | Special Interest | Fun, Hobby, Technology |
| World Toy Camera Day | Fun | Hobby, Technology |
| National Clean Your Virtual Desktop Day | Special Interest | Technology |
| Information Overload Day | Special Interest | Health, Technology |
| World CRISPR Day | Health | Health, Technology |
| National iPod Day | Arts & Entertainment | Music, Technology |
| National Mole Day | Special Interest | Technology |
| Global Media and Information Literacy Week | Special Interest | Awareness, Educational, Technology |
| World Day for Audiovisual Heritage | Cultural | Awareness, Historical, Technology |
| National Internet Day | Special Interest | Technology |
| Aviation History Month | Special Interest | Educational, Historical, Technology |
| World Communication Week | Relationship | Historical, Lifestyle, Technology |
| Benjamin Banneker Week | Special Interest | Appreciation, Historical, Technology |
| National Rad Tech Week | Special Interest | Health, Technology |
| National Radiologic Technology Week | Health | Educational, Technology |
| National Ladies Learning Code Day | Special Interest | Educational, Technology, Women |
| National Programmatic Advertising Day | Appreciation | American, Technology |
| STEM/STEAM Day | Cause | Educational, Technology |
| World Usability Day | Special Interest | Awareness, Technology |
| Area Code Day | Special Interest | American, Technology |
| Geographic Information Systems Day | Cause | Awareness, Environment, Technology |
| GIS Day | Special Interest | Career, Environment, Technology |
| National Unfriend Day | Relationship | Mental Health, Technology |
| Africa Industrialization Day | Special Interest | Appreciation, Awareness, Technology |
| Name Your PC Day | Special Interest | Friendship, Fun, Technology |
| World Television Day | Special Interest | Technology |
| National Jukebox Day | Arts & Entertainment | Music, Technology |
| Fibonacci Day | Special Interest | Educational, Technology |
| Systems Engineer Day | Special Interest | Appreciation, Career, Technology |
| Red Planet Day | Fun | Educational, International, Technology |
| Electronic Greetings Day | Fun | Appreciation, Fun, Technology |
| National Computer Security Day | Special Interest | Awareness, Safety, Technology |
| Bifocals at the Monitor Liberation Day | Health | Awareness, Technology |
| Business of Popping Corn Day | Food & Beverage | Historical, Technology |
| Safety Razor Day | Special Interest | Lifestyle, Safety, Technology |
| World Computer Literacy Day | Special Interest | Educational, Technology |
| National Microwave Oven Day | Special Interest | Cooking, Food, Technology |
| Computer Science Education Week | Special Interest | Children, Educational, Technology |
| International Shareware Day | Special Interest | Technology |
| National App Day | Arts & Entertainment | Lifestyle, Technology |
| National Device Appreciation Day | Appreciation | Financial, Technology |
| Cathode-Ray Tube Day | Fun | Appreciation, Technology |
| National Flashlight Day | Special Interest | American, Safety, Technology |
| National Download Day | Special Interest | Technology |
| No Interruptions Day | Special Interest | Lifestyle, Technology, Work |