What is difference between BC/AD and BCE/CE?

What is difference between BC/AD  and BCE/CE?

BC = Before Christ = Represents the years before Christ was born
AD= Anno Domini (Latin for ‘the year of our Lord’) = Represents the years after Christ was born

BCE = Before Common Era
CE = Common Era

BCE and BC represents the same years but in the BCE religious aspect was removed, Year of the birth of the Christ considered the starting of the common era.