If two hours ago it was as long after 1 o'clock in the afternoon as it was before 1 o'clock in the morning, then two hours ago it was 7:00 pm. At 7:00 pm it is 6 hours after 1:00 pm and 6 hours before 1:00 am.
So two hours ago it was 7:00 pm. Now it is 9:00 pm.