There should be validation when user selects the past date to schedule the publishing of some data in publish to live popup window.
Steps to reproduce:
2) Enable Staging as Local Live
3) Click on "Publish to live" in Staging to publish the content to Live
4) Now in the new opened popup window, under the Date tab, select some past date in "Start date" option.
5) Clicked on Add Event.
Actual Behavior: Publishing of content scheduled successfully for the past date.
Expected Behavior: There should be validation message when scheduling of content for the past date.