Which bank are you getting the GIC from? CIBC does RTGS, since this coming Saturday is a working Saturday, you can do so, but CIBC will not process it as they don't work on Saturdays. Other banks(Scotia, ICICI, SBI, HSBC) do a wire transfer, you will have to ask your local bank if they will accept the wire transfer on Saturdays. Even if they do, they won't process the payment on the weekend since most of the banks do not operate on weekends( Sat and Sun).