Funds transferred to another bank need to be processed and cleared by that bank. This may take up to three working days from the transfer date, or longer for overseas bank accounts. An express transfer to another bank account in Singapore will be processed the next working day if submitted after 4:30 PM or on a Sunday or public holiday.
You can log in to OCBC Online Banking (http://www.ocbc.com/login) and select “Customer Service” > “Check internet transaction status” to check the status of this transfer.