[bagster]

A mother never tells you her newborn 1 until after 365 days.

Exaaaaactly. And just like as with a child, we tell you the date in month/day/year.

Today is the second day of the first month of the year 2020. Which is a date contained in the 20th year of this century. Not a date in the 19th year of the century. Therefore, within the 20's, a decade in the century.

Just like a two month old child is in the 1st year of his life. Not the zero year of his life.

[TXBubba]

Which is a date contained in the 20th year of this century. Not a date in the 19th year of the century. Therefore, within the 20’s, a decade in the century.

---

It is a date contained in the 20th year correct. But it is a date contained in the 10th year of this decade. 2010 was the 10th year of the Century not 2009.