Under normal circumstances, it will arrive as soon as possible.
In fact, bank-securities transfer involves the settlement of securities fund accounts and bank accounts.
If you transfer money from the bank to securities during stock trading hours, your money can be transferred to the bank account a few hours after the closing (usually before going to work).
But if you transfer money after closing, the system will probably default to transfer money the next day, so the money will not be transferred to your account until the next day.