| National Clean Up Your Computer Month | |  |
| National Drinking Straw Day | | |
| National Technology Day | | |
| National Balloon Ascension Day | | |
| National Cut Your Energy Costs Day | | |
| Public Radio Broadcasting Day | | |
| National Pothole Day | | |
| Cable Car Day | | |
| National Tin Can Day | | |
| National Camcorder Day | | |
| Beer Can Appreciation Day | | |
| Macintosh Computer Day | | |
| National Bubble Wrap Appreciation Day | | |
| World Breast Pumping Day | | |
| Scotch Tape Day | | |
| Car Insurance Day | | |
| Free And Open Source Software Month | | |
| National Chopsticks Day | | |
| National Clean Out Your Computer Day | | |
| National Umbrella Day | | |
| National Inventors’ Day | | |
| Safer Internet Day | | |
| World Radio Day | | |
| National Ferris Wheel Day | | |
| National Battery Day | | |
| National Handcuff Day | | |
| National Tile Day | | |
| Digital Learning Day | | |
| National Umbrella Month | | |
| Teen Tech Week | | |
| National Day of Unplugging | | |
| Open Data Day | | |
| Check Your Batteries Day | | |
| Fill Our Staplers Day | | |
| National Worship of Tools Day | | |
| National Earmuff Day | | |
| National Freedom of Information Day | | |
| National Biodiesel Day | | |
| Nano Days | | |
| National Pencil Day | | |
| Eiffel Tower Day | | |
| National Bunsen Burner Day | | |
| National Crayon Day | | |
| World Backup Day | | |
| National One Cent Day | | |
| Jeep 4×4 Day | | |
| National Flash Drive Day | | |
| National Teflon Day | | |
| International Safety Pin Day | | |
| National Eight Track Tape Day | | |
| National Submarine Day | | |
| International Day of Human Space Flight | | |
| Yuri's Night | | |
| National Rubber Eraser Day | | |
| National Ford Mustang Day | | |
| International Marconi Day | | |
| National Telephone Day | | |
| World Intellectual Property Day | | |
| Morse Code Day | | |
| International Drum Month | | |
| National Inventor’s Month | | |
| 45 Day | | |
| World Password Day | | |
| National Train Day | | |
| National Windmill Day | | |
| National Odometer Day | | |
| National Defense Transportation Day | | |
| International Day Of Light | | |
| World Telecommunication and Information Society Day | | |
| Weights & Measures Day | | |
| Global Accessibility Awareness Day | | |
| I Need A Patch For That Day | | |
| National Brown-Bag It Day | | |
| National Cellophane Tape Day | | |
| National Paperclip Day | | |
| Loomis Day | | |
| Autonomous Vehicle Day | | |
| Web Designer Day | | |
| National VCR Day | | |
| National Ballpoint Pen Day | | |
| National Sewing Machine Day | | |
| National FreeBSD Day | | |
| National Watch Day | | |
| World Motorcycle Day | | |
| National HVAC Tech Day | | |
| Typewriter Day | | |
| National Parchment Day | | |
| Color TV Day | | |
| World Refrigeration Day | | |
| Log Cabin Day | | |
| National Camera Day | | |
| National Waffle Iron Day | | |
| World Industrial Design Day | | |
| National Corvette Day | | |
| Social Media Day | | |
| National U.S. Postage Stamp Day | | |
| Air Conditioning Appreciation Day | | |
| Umbrella Cover Day | | |
| Math 2.0 Day | | |
| Video Games Day | | |
| National Swimming Pool Day | | |
| Paper Bag Day | | |
| National Tape Measure Day | | |
| Wrong Way Corrigan Day | | |
| Woodie Wagon Day | | |
| Space Exploration Day | | |
| National Hammock Day | | |
| National Lipstick Day | | |
| National Crayon Collection Month | | |
| World Wide Web Day | | |
| National Lighthouse Day | | |
| Particularly Preposterous Packaging Day | | |
| Skyscraper Appreciation Day | | |
| National Mail Order Catalog Day | | |
| National Radio Day | | |
| Internaut Day | | |
| National Knife Day | | |
| National Toilet Paper Day | | |
| National Petroleum Day | | |
| National Slinky Day | | |
| Skyscraper Day | | |
| International Drive Your Studebaker Day | | |
| National Video Game Day | | |
| Programmers Day | | |
| Education Technology Day | | |
| World Maritime Day | | |
| International Lace Day | | |
| Save Your Photos Day | | |
| CD Player Day | | |
| Computer Learning Month | | |
| National Lace Day | | |
| National Manufacturing Day | | |
| National Name Your Car Day | | |
| National Produce Misting Day | | |
| National Techies Day | | |
| Change A Light Day | | |
| Inbox Zero Day | | |
| National Bathtub Day | | |
| National LED Light Day | | |
| World Cotton Day | | |
| National Online Bank Day | | |
| Ada Lovelace Day | | |
| World Standards Day | | |
| Steve Jobs Day | | |
| Spreadsheet Day | | |
| World Toy Camera Day | | |
| National Clean Your Virtual Desktop Day | | |
| iPod Day | | |
| World Development Information Day | | |
| Internet Day | | |
| National Doorbell Day | | |
| Aviation History Month | | |
| Historic Bridge Awareness Month | | |
| Scented Candle Day | | |
| Smart Home Day | | |
| Fountain Pen Day | | |
| World Radiography Day | | |
| Area Code Day | | |
| World Top Up Day | | |
| World Quality Day | | |
| Name Your PC Day | | |
| Africa Industrialization Day | | |
| World Television Day | | |
| Fibonacci Day | | |
| National Jukebox Day | | |
| Electronic Greetings Day | | |
| Computer Security Day | | |
| National Mason Jar Day | | |
| National Cookie Cutter Day | | |
| National Cookie Cutter Week | | |
| Candle Day | | |
| National Microwave Oven Day | | |
| National App Day | | |
| International Shareware Day | | |
| National Flashlight Day | | |
| No Interruptions Day | | |
