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Time difference: Changcha to San Antonio
CSX (Changsha Huanghua International Airport) → SKF (Lackland Air Force Base)
-13h
San Antonio is behind
9d
est. jet-lag recovery, westbound
Reading the clocks
When it's noon in Changcha, it's 11:00 PM in San Antonio. Good for planning calls home or coordinating with people on the other end.
Jet lag outlook
Significant jet lagCrossing 13 time zones westbound — plan roughly 9 days to feel fully adjusted. Shifting your sleep schedule 3 days before departure helps.
Frequently asked questions
What is the time difference between Changcha and San Antonio?
San Antonio is 13 hours behind Changcha.
How bad will my jet lag be?
Crossing 13 time zones westbound typically takes 9 days to fully adjust to. Eastbound trips (traveling against your body clock) tend to feel worse than the same distance westbound.
What is the flight time from CSX to SKF?
The nonstop flight distance is 7,938 miles. See the full distance and flight-time breakdown for exact timing.
What's the best way to book around jet lag?
Overnight eastbound flights that land in the morning let you push through to local bedtime and adjust faster. Call CheapoTrav — our agents know which schedules on this route land at the best local time, plus unpublished phone-only fares.