Gold withdrawal requests are processed and credited to your account within 24-48 business hours from the time of your request to sell your gold. These timelines may be impacted due to the bank working days/hours. 

If you place a request to withdraw your gold on a Friday evening then you can expect the withdrawal to be completed on Monday or by Tuesday as most banks does not work on the Saturdays. Depending on the banking hours and days of working the withdrawal will be completed.