Are these calculations based in China? What if I live in the USA (New York City)?

Are the calendar calculations based on premise that the person is located in PRC? I live in the USA (New York City) and since there is a half-day (12 hour) difference in time zone, should I be looking at the previous day's predictions? For example, this calendar lists August 06, 2015 as lucky for traveling but August 05 as bad for traveling. But if Aug 6 in PRC is actually Aug 5 in the USA......do you see how it can get confusing? Please advise! Thanks!