How long is the process to receive an Interac e-Transfer?

In addition to normal processing times.

E-Transfer requests received Monday through Wednesday will be paid out to the end-users on Wednesday through Friday. e-Transfer requests received Thursday will be paid out to end-users on Monday. Files received Friday through Sunday will be paid out to end-users on Tuesday. If e-Transfer requests or payout dates fall on a statutory or banking holiday, payments will be made to end-users one business day later than the above timing.

Interac are introducing faster withdrawal processing and this is coming soon (no estimated date at this time)