9:00 pm PST is not suitable to schedule meetings
When planning a call between Pacific Standard Time and Central Time, you need to consider time difference between these time zones. PST is 3 hours behind of CT.
It is currently 9:00 pm in PST, which is not a suitable time to arrange a call or meeting with someone in CT, since it is 12:00 am there, which not within the optimal time span between 7:00 am and 11:00 pm.
You could, however, schedule a call between 4:00 am and 8:00 pm your time. This time span will be between 7:00 am and 11:00 pm in CT.