The Hebrews reckoned two evenings of each day, as appears from Ex. 16:12: 30:8; 12:6 (marg.); Lev. 23:5 (marg. R.V., between the two evenings). The first evening was that period when the sun was verging towards setting, and the second evening the moment of actual sunset.
BCE/CE usually refers to the Common Era (the years are the same as AD/BC). That is, BC is usually understood to mean Before the Common Era and CE to mean Common Era, though it is possible to reinterpret the abbreviations as Christian Era..
Overview: CE usually stands for  Common Era .. AD is an abbreviation for  Anno Domini  in Latin or  the year of the Lord  in English. Both measure the number of years since the approximate birthday of Yeshua of Nazareth (a.k.a. Jesus Christ) a little over two millennia ago.