Hong Kong is 14 hours ahead of Austin during US summer (CDT), and 13 hours ahead during winter (CST). When it's 9:00 AM in Austin, it's 10:00 PM or 11:00 PM in Hong Kong.
Hong Kong uses HKT (UTC+8) year-round and doesn't observe DST.
Optimal window: 6:00 PM - 9:00 PM Austin time (8:00 AM - 11:00 AM Hong Kong next day). Evening calls from Austin catch morning business hours in Hong Kong.
Cathay Pacific and connecting flights link Austin to Hong Kong International Airport.