Aside from public holidays and market closures due to inclement weather, the SEHK normally trades Monday-Friday. Trading hours are as follows:
[Pre-opening Auction Session] 9:00 PM – 9:20 PM EST
[Continuous Trading Session] Also called regular trading period:
9:30 PM – 12:00 Midnight & 1:00 AM – 4:00 AM EST
[Closing Auction Session] 4:00 AM – 4:08 AM EST
The market is closed on weekends and public holidays.
Note: TradeUP currently only supports trading during Continuous Trading Session. Limit orders made during this period are not guaranteed to be executed.