If you mean three ones and three ones only, the the answer is twice: 1:11 a.m., and 1:11 p.pm.
If, however, your answer includes both readouts containing three or four ones, then your answer is 46 times. For both a.m. and p.m.: 11:10 1:11 11:01 11:11 11:12 11:13 11:14 11:15 11:16 11:17 11:18 11:19 11:21 11:31 11:41 11:51 10:11 and 12:11.
Of course, these answers do not hold for military time.
146
146
5 times
The number 5 will appear 146 times in 24 hours.
once
many times.
120
146
146
5 times
The number 5 will appear 146 times in 24 hours.
That depends on what time it is, and whether the clock is plugged in.
There are four digits on a digital clock. A seven will never appear in two of them. It will appear 6 times per hour (07, 17, 27, 37, 47, 57) and once each at 7 am and 7 pm, or 700 and 1700 if you're keeping military time. My best guess: 24 x 6 + 2 = 144
34
An hour has 60 min. Assuming the clock has only the hour and minute displayed, every hour 1 would appear at 1, 11,12,13,14,15,16,17,18,19,10,21,31,41,51. Counting 11 as once there are 15 1s in an hour. In the 24 hours, only 0,2,3,4,5,6,7,8,9,22,23 have no 1 s in them. Therefore 1 aooears 165 times in those times. As for hours 1,10,11,12,13,14,15,16,17,18,19,21, there is always a 1 in the clock. This makes 1 appear 12*60 times which is 720 times. Therefore in total, 1 appears 885 times in a digital 24 hour clock.
1:11
120 times