The end of the decade. People have been eagerly celebrating the end of the 2010s. But was January 1, 2020, really the beginning of the decade? It depends on who you ask – When exactly the decade begins and ends all depends on who you ask. When it comes to decades, there seems to be some flexibility. It depends on language how we talk about time spans. Remember that there was never a year zero and it has effect on centuries and millennia definitions. So, how come this rule doesn’t apply to decades? Society seems to have collectively determined that decades begin in years ending in zero and end on years ending in nine. If you insist that decade does not end in the end of 2019, you are not wrong, because maybe it’s technically correct to say that the decade ends in the 0 year, not the 9 year. But saying that would annoy most people. Does any of this matter? A stronomically, not really. It’s a man-made system.
As January 1, 2020, approached, very many publications were is reflecting about the past decade and the new one that awaits. “Best of the decade” lists are everywhere. Here are links to some lists: