Why is my iPhone 5C keeps losing the proper date?

Is this caused by the wrong settings? Or maybe it is due to the fulty chip .

I am waiting to find out your experience!

crwdns2893858:0crwdne2893858:0 crwdns2893862:0crwdne2893862:0

crwdns2894050:0crwdne2894050:0

crwdns2889612:0crwdne2889612:0 0
crwdns2892346:0crwdne2892346:0