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From 16 June 2025, you will be able to participate in IDX's pre-opening session via iOCBC platforms. 

Here are the revised trading hours (all times refer to the time in Singapore):
 

Monday to Thursday
Pre-Opening*	9.45am to 9.59.59am
Trading Session 1	10.00am to 1.00pm
Break	1.00pm to 2.30pm
Trading Session 2	2.30pm to 4.49.59pm
Pre-Closing^	4.50pm to 5.01.59pm
Post-Closing	5.02pm to 5.15pm

 

Friday
Pre-Opening*	9.45am to 9.59.59am
Trading Session 1	10.00am to 12.30pm
Break	12.30pm to 3.00pm
Trading Session 2	3.00pm to 4.49.59pm
Pre-Closing^	4.50pm to 5.01.59pm
Post-Closing	5.02pm to 5.15pm

*Orders will be matched from 9.58am to 9.59.59am. 

^The trading session may close any time between 4.58pm and 4.59.59pm. Orders will be matched from 5.00pm to 5.01.59pm. 

For more details, go to our IDX Market information page.