The Palladino/Booker Time Sessions script will allow you to highlight certain periods of time during the day that are best suited to your trading. Add the script to your chart as many times as you like to highlight as many Time Sessions as you like.
study("Palladino/Booker Time Sessions", overlay=true)
s = input(title="Session", type=session, defval="24x7")
int = tostring(interval)
timeinrange(res, sess) => time(res, sess) != 0
regular = blue
notrading = na
sessioncolor = timeinrange("1", s) ? regular : na
bgcolor(sessioncolor, transp=75)