Suggestion: Sale and/or discount by schedule.

Hi,
I would like to contribule the idea as bellow:
I am a restaurance, and I want to sale and/or discount by schedule. For example: I have fish on Saturday and Sunday only [weekly schedule], I just want to apply discount for special order from 3:00 PM - 5:00 PM only [daily schedule], etc...
That means, when I create Product (or Category), I can set a schedule. It should the same as when I create a window schedule.  

Hope this should be apply on new version.
Thanks.

In 3.90, Tier Prices allow for setting a Date/Time range.

New York wrote:
Discounts also allow for time/date range.
Sales Campaings plugin rom Nop-Templates has more powerful features as a timer and scheduler