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Time difference: Houston to Singapore
IAH (George Bush Intercontinental Houston Airport) → SIN (Singapore Changi Airport)
+13h
Singapore is ahead
13d
est. jet-lag recovery, eastbound
Reading the clocks
When it's noon in Houston, it's 1:00 AM in Singapore. Good for planning calls home or coordinating with people on the other end.
Jet lag outlook
Significant jet lagCrossing 13 time zones eastbound — plan roughly 13 days to feel fully adjusted. Shifting your sleep schedule 3 days before departure helps.
Frequently asked questions
What is the time difference between Houston and Singapore?
Singapore is 13 hours ahead of Houston.
How bad will my jet lag be?
Crossing 13 time zones eastbound typically takes 13 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 IAH to SIN?
The nonstop flight distance is 9,925 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 Call CheapoTrav — our agents know which schedules on this route land at the best local time, plus unpublished phone-only fares.