Category Archives: Numbers

How Do We Know What Decade This Is?

Happy New Year!

I am hearing these arguments over when the new decade actually begins. So, there are really two decades, but is one of them the legitimate one to think of when the “new” decade begins?

The first decade is when the new tenth number comes around, such as “1 to 10.” And now we are going from the 1 in 19 to the 2 in 20. So after the 2010s now it’s the 2020s. There were the 1990s, the 2000s, the 2010s, 2020s, etc.

But is that when the “new” decade actually begins? Usually, we begin counting not on 0 (“zero”) but on 1, as in 1 to 10, 11 to 20, 21-30, etc. So, a “decade” should be 1-10, etc. That means the new “decade” really begins next year, on January 1st, 2021.

However, I think it seems more fitting to think of the “new” decade as the “20s” like the “2010s,” the “2000s,” the “1990s,” etc. So, I guess it can be both. And that is what I have to say about that.