If the time is currently 1:30 pm, what time will it be in exactly 644 hours?  Choose the correct choice from the following options.
A) 7:30 am	B) 8:30 am	C) 9:30 am	D) 10:30 am	E) 11:30 am
644 = 26(24) + 20/24   The time will be 20 hours later than 1:30 pm which is 9:30 am.   The answer is 9:30 am.
<result>C</result>
If the time is currently 1:30 pm, what time will it be in exactly 644 hours?