Planetary Hours

A living heptagram, hour clock, and local sky guide.

Where and when settings—
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Choose a place to update latitude, longitude, and timezone together.

Day ruler and Sun frame

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Day ruler——

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Jump to this date in Sky Chart

Current placements

Planet wheel loads when Astronomy Engine is available.

Living planetary hour

Current time and planetary hour

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Hour ruler — —

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How to read this
The heptagram shows planetary time at three scales: completed week paths, the active sunrise-to-sunrise day path, and the highlighted planetary hour.

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Week
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Day and hour
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Geometry
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Moon calendar

☽

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Wanderer visibility

Rise, set, and current sky position

Choose a tile to see rise, set, visibility, compass direction, and altitude together. Tiles are ordered by practical viewing: naked eye, binoculars, telescope, not practical, then below horizon.

Planet positions load here when Astronomy Engine is available.

Sky orientation

Where is the wanderer?

Uses the same time, latitude, longitude, and timezone as Planetary Hours.

Tap a planet tile above to update the guide. No search is needed here.

♄Saturn selected

Observe

Ask where Saturn, Jupiter, Mars, Venus, Mercury, the Moon, or the Sun is.

Altitude
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Azimuth
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Compass
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Visibility
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Compass ray

N 0° S 180° W 270° E 90°

The ray will point from the selected place toward the body.

Altitude arc

Ask a sky question to plot altitude.

The ray shows how high to lift your eyes from the horizon.

Use this outside

  • Enter a sky question and press Orient.

Ephemeris provider: Astronomy Engine. Symbolic text is separated from calculated fact.

Twenty-four planetary hours

#Start–EndRulerBright/DarkFocus
About / Help

Sunrise-to-sunrise frame. The planetary day begins at local sunrise and ends at the next local sunrise.

Bright and dark. Bright hours run from sunrise to sunset. Dark hours run from sunset to the following sunrise.

Location packets. Manual Location Mode pairs a named place with latitude, longitude, and timezone so historical dates and birth times are not mixed with the wrong local frame.

Moon calendar. The Moon panel uses SunCalc for moon phase, illumination, moonrise, moonset, and above/below-horizon clues for the same selected place and time.

Statements. Each focus statement combines the day ruler as the broad field, the hour ruler as the method, and the ruler's ordinal appearance in the planetary day. The page says “Moon hour,” “Jupiter day,” and so on to keep timing conditions distinct from planets as bodies.

Animated heptagram. The ring keeps the Chaldean order. The hour ruler glows inside the current day. The heptagram advances one day-ruler step per sunrise-to-sunrise day, so the full star is drawn over seven planetary days.