Can I request a specific FOC date for my port-in?

In this article:

An FOC (Firm Order Commitment) date is the day on which your number should port in from your previous carrier. If you're leaving the country and want to make sure your phone stays active with your current provider until your flight takes off, your best option is to schedule your port-in request as explained in the following article:

Can I schedule a port in on a specific date?