Hi, I'm Barry Wrightman, author of "Secrets, Tips and Tricks of a Powerful Memory, and I'm here to discuss a question that you may have; how to remember which months have 30 days or which months have whatever number of days? The simple answer is still the best; most of us learned it when we were four or five or six years old, but just to review in case you didn't, I don't know anything better.
Simple little rhyme scheme: 30 days has September, April, June and November. Once you've gotten that little rhyme together, the rest falls into place, and I won't necessarily do it right now in the rhyme scheme, but everything else has 31 except February, and you're familiar with February it's a short month with 28 days, 29 in leap year. So, once I've said 30 days has September, April, June, and November by default, I know every single month.