The time will be 2 hours short of 48 hours( equivalent to 2 days) So, 9.30 pm on Friday + 48 hours it will be; 9.30 pm on Sunday Then subtract two hours; 9.30 pm- 2hours Sunday, 7.30 Pm
46 hours after 9:30 p.m. on Friday will be J. 7:30 p.m. Sunday. Since 46 hours is almost two days, you just need to take away those two hours, and you will get the time you need, two days after the original day.