how much time elapsed from 4:43am unto 12:04 pm?

7hrs 21 mins

correct.

http://wwp.greenwichmeantime.com/info/noon.htm

better form, is to refer to the last time given as 00:04PM which means four minutes post meridian.

To calculate the elapsed time between 4:43am and 12:04pm, you can follow these steps:

1. Convert both times to the same format (either 12-hour or 24-hour format) to simplify the calculation. Let's assume we're working with the 24-hour format.

2. The start time is 4:43am, which is equivalent to 04:43 in the 24-hour format.

3. The end time is 12:04pm, which is equivalent to 12:04 in the 24-hour format.

4. Subtract the start time from the end time:

12:04 - 04:43 = 7:21

5. The result is 7 hours and 21 minutes.