I have operating hours/time slots for one service territory as below  

Monday        9:00 AM    7:00 PM    Normal 11-05-2020
Tuesday        9:00 AM    7:00 PM    Normal 12-05-2020
Wednesday    9:00 AM    7:00 PM    Normal 13-05-2020
Thursday    9:00 AM    7:00 PM    Normal 14-05-2020
Friday        9:00 AM    7:00 PM    Normal 15-05-2020
Saturday    9:00 AM    7:00 PM    Normal 16-05-2020
Sunday        9:00 AM    7:00 PM    Normal 17-05-2020


I can see the same time slots while booking service appointment for next 15 days from today

But I want to show this week Wednesday (13-05-2020) and Thursday (14-05-2020) time slots as Emergency hours and upcoming Wednesday and Thursday as normal hours.
Is it possible through configuration or code?

Monday        9:00 AM    7:00 PM    Normal 11-05-2020
Tuesday        9:00 AM    7:00 PM    Normal 12-05-2020
Wednesday  11:00 AM 4:00 PM    Emergency 13-05-2020
Thursday   11:00 AM 4:00 PM Emergency 14-05-2020
Friday        9:00 AM    7:00 PM    Normal 15-05-2020
Saturday    9:00 AM    7:00 PM    Normal 16-05-2020
Sunday        9:00 AM    7:00 PM    Normal 17-05-2020
Monday        9:00 AM    7:00 PM    Normal 18-05-2020
Tuesday        9:00 AM    7:00 PM    Normal 19-05-2020
Wednesday    9:00 AM    7:00 PM    Normal 20-05-2020
Thursday    9:00 AM    7:00 PM    Normal 21-05-2020
Friday        9:00 AM    7:00 PM    Normal 22-05-2020
Saturday    9:00 AM    7:00 PM    Normal 23-05-2020
Sunday        9:00 AM    7:00 PM    Normal 24-05-2020