Growing up in the 20th Century, when you said the year you would always say "Nineteen-something-something" like "Nineteen Seventy-Seven." But then we got to 2000 and everyone started saying "Two Thousand" and that continued with "Two Thousand One," "Two Thousand Two," and so on.
Now we're in Two Thousand Fifteen. Or should we start to say it "Twenty Fifteen?" I mean if you ask me that's shorter and it sounds more futuristic. But most people still say it the longer way. I have to wonder if people will keep using Two Thousand right up to 2099. I imagine when it gets to 2100 no one is going to want to say "Two Thousand One Hundred." And certainly not "Two Thousand One Hundred Fifteen." But by then we'll all be dead, so it probably doesn't matter that much.
Anyway, food for thought for your weekend. Speaking of time, set your clocks forward this weekend! Unless maybe you're the Mitchells in Arizona. I don't know if they do the daylight savings time thing. Here's an appropriately-titled song: