Then, is 2020 the start or end of a decade?
The anno domini era, or the common era, begins with year 1 on the Gregorian calendar. By that same logic, the first decade in the calendar was complete at the end of 10 CE, or 10 AD. Which means, according to the Farmers' Almanac, that the end of this decade is December 31, 2020, not December 31, 2019.
Also, is 2020 going to be a new century? The 21st (twenty-first) century is the current century of the Anno Domini era or Common Era, in accordance with the Gregorian calendar. It began on January 1, 2001, and ends on December 31, 2100. It is the first century of the 3rd millennium.
Hereof, how many days is 2020 decade?
3652 days
Does a new decade start in 2020 or 2021?
They say that because there was no Year Zero when the current era began more than 2,000 years ago, all decades, centuries and millenia begin with Year 1. "The next decade won't start until Jan. 1, 2021," Sandi Duncan, the managing editor of the Farmers' Almanac, recently told NPR's Morning Edition.