06:15 The clock shows 3:45 but is running 15 minutes slow. To find the actual time, add the 15 minute discrepancy to the clock's time: 3:45 (clock time) + 15 minutes = 4:00 Now, "a quarter past an hour" means 15 minutes after the hour. So, the actual time 15 minutes after 4:00 is: 4:00 (adding 15 minutes) = 4:15 Therefore, the correct time based on the given text is 06:15 or six fifteen.