Connect a clock face to the time its hands represent

SimplyUtils Interactive Analog Clock has three modes: a live local display, manual practice and a match-time quiz. The face uses twelve hour markers and sixty minute ticks. A digital readout and labeled hour/minute inputs provide an alternative to dragging. The quiz asks you to position hands for a displayed target; it is not a standardized assessment of independent clock-reading ability.

Worked example: place the hands at 3:30

Open Practice hands. On first use the manual controls start at 10:10.
Set Hour to 3 and Minute to 30. The digital readout becomes 03:30.
The blue minute hand points to 6. Each hour marker represents five minutes, so six markers from 12 means thirty minutes.
The shorter red hour hand lies halfway between 3 and 4. It moves through the hour as minutes advance rather than staying fixed on the hour marker.
Change the minute input to 45. The minute hand points to 9 and the hour hand moves three quarters of the way from 3 to 4.

At 3:30 the minute angle is 180° from the top, while the hour angle is 105°: 3 × 30° plus 30 × 0.5°. When dragging the hour hand, the tool accounts for that fifteen-degree minute contribution so the same 3:30 position does not incorrectly snap to 4:30. The two manual values are independent; rotating the minute hand past 12 does not automatically carry an hour.

Dragging and keyboard controls

In practice or quiz mode, start on the red hour hand or blue minute hand and drag around the center. Pointer capture continues the drag when your pointer moves beyond the face until you release it. Movements near the central pin are ignored because there is no useful angle there. Minute dragging snaps to the nearest single minute in practice and the nearest five minutes in quiz mode; hour dragging snaps to whole hour values while retaining the current minute contribution.

If dragging is inconvenient, use the labeled numeric controls. Hours must be whole numbers from 1 to 12 and minutes from 0 to 59. Empty, fractional or out-of-range controls show an error and hide the invalid face rather than silently clamping them. The responsive face scales within the page. There is no need to identify hands by color alone: the hour hand is shorter, the minute hand longer, and the controls and digital readout show their values.

What the match-time quiz measures

Match-time quiz chooses an hour from 1–12 and a minute from 0, 5, 10 through 55. Opening the quiz or requesting New question resets the hands to 12:00. Adjust them to the displayed target, then press Check answer. A mismatch gives feedback and allows another try; it does not add a point.

A matched question adds one point and locks that question's controls until you request another question. Repeated submission cannot add extra points for the same question. New questions can repeat a previously seen time. The score counts matched questions during this visit; it is not stored, exported or used to certify a skill level. Random choices use Math.random() for practice variety. A random-source error leaves the quiz unavailable until a successful retry, without showing an old target as current.

Live time comes from your device

Live local clock samples the browser's device time once per second. The face shows a twelve-hour cycle; the digital readout follows the browser's locale formatting. Hour and minute angles also include their smaller minute and second contributions. A background tab may update late, and switching back to live mode refreshes the displayed time.

This is not a network-synchronized reference clock. Incorrect device time or timezone settings affect the display. No separate timezone selector, 12/24-hour toggle, face-theme collection, fullscreen control, floating widget, alarm, timer, image download or embed code is provided. For time between dates, use the separate Date Calculator; do not treat a moving clock face as an elapsed-time measurement.

Processing, privacy and troubleshooting

Face geometry, manual values and quiz feedback are computed in your browser without a clock-processing API. Manual values and scores are not stored between visits. The surrounding website can still load analytics, advertising and other assets under the privacy policy; local clock computation does not mean the whole page makes no network requests.

If a manual face disappears, correct the hour or minute field indicated by the message. If a completed question no longer accepts input, press New question or switch to Practice hands. If the live time seems wrong, check the device clock and timezone. If dragging overlaps the central pin, use the hand's outer section or the numeric controls. Reloading starts a new visit and clears the quiz score.