i'm not sure when exactly the timer ends - don't remember if i ever was so close to see hours i/o days... so i'm usually just adding stated qtty of days.
however, since right now i still see that 13 days left despite the pst day switched almost 4hrs ago -
i guess the timer wd rather ends at the same moment as it was started, i.e. somewhere between 10am and 11am pst (6..7pm gmt) february 1st.