WE have to reverse time hour and minute hand in 04:42,,, its obvious that hour hand will be bet 8 and 9 so our answer wil be 8 hours 20 minutes + ( something )

12 hrs = 360 degrees

we know 60min=30 degree

1 min = .5 degrees

= = = = =42 min= 21 degrees

===== at 04:42 hours hand moves 21 degrees further down

Now consider the reverse case

now between 20 minutes to 25 minutes we have 30 degrees

```
=== == 30 degrees = 5min
== == 21 degrees = (5/30)*21 = 3.5 minutes
```

hence our answer is 08:23:30 , or 8 hours 23 minutes 30 seconds

so if it is 4:42 pm then ans is 8:23:30 pm and it it is 4:42 am ans is 8:23:30 am