[@nightgunner5 Member 15 years, 9 months ago]

Instead of $result->topic_start_time, you want date( strtotime( $result->topic_start_time ) < time() - 86400 ? 'F j' : 'H.i', bb_offset_time( strtotime( $result->topic_start_time ) ) )

That should fix the date offset problem and give you the date formats you want.