A decorative cuckoo clock has the numbers 1-5, and 7-12, but is missing the 6.
A cuckoo cluck with a blue bird on it is showing the time 6:00.
The time of the colorful wooden clock is 06:00
A cuckoo clock with a blue and white bird reads six o'clock.
A cuckoo clock with the numbers 1 through 12 on the clock face