The best time on a clock is 6:30, hands down.
Why this joke works
Picture Both Hands Pointing Down
“Hands down” means unquestionably, making it a natural way to declare one choice the best. At 6:30 on an analog clock, the minute hand points straight down and the hour hand points downward between six and seven, giving the idiom a visible second meaning. Say “6:30” clearly enough for listeners to picture a clock face, then let the final phrase follow without a dramatic pause. The joke works fastest when the familiar expression prompts the image on its own.
A closer look
Both Hands Reach Their Lowest Point Together
At 6:30 on a traditional clock face, the minute hand points down at six while the hour hand sits between six and seven. The phrase “hands down” normally declares an easy winner, but the displayed hands make the ranking literal. Calling it “the best time” creates the contest without naming competitors. The exact half hour provides a visual punchline that readers can verify mentally.
Fact behind the joke
Clock Hands Translate Repeated Motion Into Familiar Units
NIST explains that a pendulum clock uses gears designed with the pendulum so its hands display hours, minutes, and seconds. Quartz clocks can also use gears to move analog hands even though a vibrating crystal supplies the regular ticks. At 6:30 the hour hand has already advanced halfway toward seven, so both hands point generally downward but do not overlap at the numeral six.