A vertical mirror flips the clock face horizontally (left becomes right, and right becomes left), while the top (12) and bottom (6) remain in place.
- The Minute Hand: At 3:30, the minute hand points directly down at the 6. Because it lies perfectly on the vertical axis, its position does not change in the reflection.
- The Hour Hand: At 3:30, the hour hand is exactly halfway between the 3 and the 4. When flipped horizontally across the mirror line, it maps to the exact opposite side of the clock face—landing halfway between the 8 and the 9.
An hour hand halfway between 8 and 9 combined with a minute hand at 6 gives you exactly 8:30.