Three questions:
1. Does the phrase "at the next four minutes" indicate that the uncle is referring to the next even increment of 4 minutes (i.e., 12:04, 12:08, 12:12, etc.) or does it mean four minutes from the current time?
2. Do you mean whole minutes/seconds, or do you consider the decimal portion of those numbers as well?
3. Are the two hands in referred to the hour and minute, or the minute and second?