From what I could get from your question
1) You want Catalog Task to be created on that date
Example: If date is 10th Jan 2021 so catalog task should be created on that day and your workflow should wait till that time
If yes then you can use Workflow Wait for Timer Activity with Script below
var gdt = new GlideDateTime(current.variables.Scheduled_retrieve_date);
answer = gs.dateDiff(new GlideDateTime(), gdt, true);
Regards
Ankur
