It is 3:00pm here,and Australia is 13 hours ahead of us . What time is it in Australia ?
$4:00$ am$24$ hours is a full day, so $24$ hours from $3:00$ pm would be $3:00$ pm
$12$ hours is a half day, so $12$ hours from $3:00$ pm (in the afternoon) would be $3:00$ am (in the morning)
$1$ more hour (Australia is $13$ hours ahead) after $3:00$ am would be $4:00$ am4 AM or 0400 hours.Arithmetically, we first need to put the given time into 24-hour format (15:00). Then add 13 to get 28, and finally subtract 24 again to get the answer within the bounds of the 24-hr day. Answer: 4AM, 04:00 hours.
That can also be determined with the 12-hour day by recognizing that every 12-hr increment moves from AM to PM and vice versa. So, 3PM, becomes 3AM. Then add the extra hour to get to 4AM.
