It's 10pm and banner is still up for 16 hour's how and why? Is neuvillete not coming Tommorow

ya, but second half does not start at reset specifically
so it would be around your 2-3 pm

2nd phase banners are released at different times for different regions. Asia gets it first, then EU, then NA.

The banner of second half always start at 6:00 pm Tuesday of server time. (Except the shorter versions of early 3.x)