First we need to know what is reffered to as the "Gentile times" When the started and when they ended. The Bible and secular history verify they started in 607 BCE when Babylon over threw the nation of Israel and would continus for 5,520 years that ended in 1914 AD or (more accurate CE)<quoted text>
How do you know the "Gentile times" ended in 1914? And define "Gentile times".
Here is a chart showing the length of the "Gentile Times"
October 607 ◀ B.C.E. C.E. ▸ October 1914
606 1⁄4 years 1,913 3⁄4 years
“The appointed times of the nations” began in 607 B.C.E. and ended in 1914 C.E.
If you need more clarification I can do some research and give you a more detailed explanation.