Apostrophes Can Be Tricky Little Things
You’ll often you’ll see dates with apostrophes. “The 60’s were an interesting time.” “Home computers really took off in the 1980’s.”
Simply put, that’s wrong. An apostrophe indicates possession – the girl’s dog, the Smith’s yard – or that a letter has been omitted, as in contractions. That’s not what’s going on it dates, so there should be no apostrophe. The 60s, the 1980s.
It may look a little funny without the apostrophe, but you’ll get used to it.