Not all products available at all hours. Please consult http://www.hkex.com.hk for individual product trading hours.
The HKFE defines valid ranges for trade executions based on certain price parameters. If a trade took place at a level equal to or greater than the Price Parameters, an "error trade" claim can be submitted directly to the exchange no later than 10 minutes after the trade is executed. The exchange will charge HK3,000 to IB, and IB will pass this fee onto the customer.
Orders entered during the T+1 session on HKFE will carry forward to the T session the following trading day unless cancelled.