That’s a thing, apparently. Yesterday (June 30) was “half-time day” according to FM Fukuoka’s 「今日は何の日？」(What day is it today?)
And we’ve gained a whole second of time: “Everyone on Earth is getting an extra second today” (from the Daily Dot). There’s an 8-minute video about the history of time-keeping, too.
What about July 1? Did anything interesting happen?
Well, sunglasses were invented in China in 1200 (says History Orb).
And the first Sony Walkman went on sale in … ? Can you guess the year? (For the answer, go to history.com.)