On P-Series you can only set different times for each inbound rule, not for common use like on S series.
If you need different time conditions, except "business hours" and "out of business hours", like "on duty" you have to change each inbound rule separately now. On S series you could make a time condition "on duty" and set that accordingly and every inbound rule referring to this condition follows it.
This should change, so that you get similar functionality like before.
Also, as a sidenote, time conditions should not only be set by month and day, but also on year (or exact date), so that you can plan your routes more in advance than just one month.