I use Subscriptions to run my medical business (membership based health clinic).

It works great.

We also have integration with Twilio to send SMS messages when financial transaction happens.
Similarly, customers also receive email messages.
In general, that functionality runs really well.

Here comes The PROBLEM:
Subscription invoices / payments are usually processed after midnight (12am) on the 1st of the month.
On my end, I usually receive a FLOOD of phone app notifications, usually around 1am -- that wakes me up.
Clients also receive their text notifications and/or emails during the night or early morning hours.
Then they complain to me about being awaken...

Now...  One may ask: "why don't you turn down/off the phone ringer?"
Well...  In my line of business we need our phones to be able to ring 24/7 in cases of emergency.

Is there a way to schedule the processing of payments OR schedule sending of the notifications to DAYTIME hours (8am - 10pm perhaps)?

If Notification Scheduling functionality does not exist yet, Please Have It Added To Feature Request.