An astronomical clock calibrated to the minute of your birth. Your natal chart is set into the dial; the present sky turns around it in real time, computed to the arcminute.
Each calibre is a working instrument. Both run on one astronomical engine, so the Sun hand, the rising degree and the lunar phase agree with each other and with the sky outside.
In horology, a complication is any function beyond hours and minutes. Ours are astronomical and astrological, each computed from your chart and the present sky, each fitted or removed like a module on a movement.
Your chart at its true Ascendant, with Placidus, Porphyry or Whole Sign houses, and every body at its exact degree.
Natal aspects drawn as a lattice, with adjustable orbs. Applying and separating aspects are rendered distinctly.
The present sky over your chart. A line brightens as a transiting planet closes on exact aspect to a natal point.
The sky above your location: the rising degree, the Midheaven, day and night arcs, and the Moon at its true phase.
Twenty-four unequal hours set by local sunrise and sunset, ruled in Chaldean order. The current hour is lit.
The twenty-seven lunar mansions, with the Moon's current nakshatra, its pada, and when it changes.
The lunar day, from Shukla Pratipada to Amavasya, beside a Moon rendered at its exact illuminated fraction.
An arc that opens at the Moon's last major aspect in a sign and closes at its ingress, timed to the minute.
Your planetary periods as a sub-dial, from mahādaśā to antardaśā, the hand on the current period.
The secondary progressed Sun and Moon: one day of motion for each year of life.
The Sun on its true figure-eight, from the equation of time and declination, with your birthday marked.
A cage turning once per sidereal day at the centre of the dial. It is a working sky hand, indexed to 0° Aries.
The ruler of the day and of the hour, for timing a launch, a letter or a meeting by the classical method.
Forty bright stars from the Yale Bright Star Catalogue, precessed to date, with conjunctions and parans to your chart.
An optional daily card that reads the sky through the four laws: one action, one lens, one trap, one experiment.
An astrologer that reads the complications above and states what your clock is showing, with the data it used.
Fit them in the studio →Every complication is included, free
Start with the Tourbillon or the Orloj. Switch at any time; your chart moves with you.
Date, time and place of birth. Without a time, we cast a noon chart and leave out everything that depends on it.
Fit modules on a live preview. Each change is computed on your device as you make it.
Download it as a single file that runs offline, or export a poster or a day-long time-lapse.
A chart for each person who matters: a partner, a parent, a cofounder. The engine reads every aspect between their chart and yours, with each planet's house and rulerships in its own chart.
◈ Add a chart only with that person's consent. Charts stay in your browser and are deleted in one tap.
Horoscope bots recite sun-sign copy. Hermes reads the complications on your dial (your transits, the hour ruler, the Moon's void) and answers from them, citing degree, orb and time.
Example · 7:00 AM digest · 7:04 AM reply
Each morning Hermes reads your clock and sends a digest by WhatsApp, SMS or email: the day ruler, the Moon and its void, and the transits in force on your chart. Reply with a question; the answer arrives in the same thread.
Messaging will be opt-in only, confirmed by a code sent to your number. Reply STOP to unsubscribe or HELP for assistance. Message and data rates may apply. WhatsApp is a trademark of WhatsApp LLC; Zodial is not affiliated with it.
Your clock is a single self-contained file that keeps astronomical time without a connection. Posters and time-lapses export straight from the studio.
Charts are computed in your browser by the engine that drives the dial. Zodial has no account system and no server that receives birth data, and the file you download is yours alone.
Both movements, every complication, your chart.
Hermes, the daily digest and your sky in your pocket.
Objects and commissions, made to order.
Hermes, the morning digest by WhatsApp, SMS or email, alerts before exact transits, and founding rates. Leave your email and we will write once, when it opens.
0.6′Maximum planetary deviation from the Swiss Ephemeris across our verification suite.
0 bytesBirth data held on Zodial servers. Every chart is computed in your browser.
1410The year the Prague Orloj, reference for Calibre Z-02, began keeping astronomical time.
Both, and we keep them distinct. Positions, houses, twilight and hours are astronomy, verified against the Swiss Ephemeris. Aspects, rulers and daśās are interpretation, drawn from named astrological traditions, and every reading says which tradition it comes from.
We cast a noon chart. Planetary positions hold to within a degree or so. The Ascendant, houses, Part of Fortune and daśā dates depend on the time, so they are left out, and the Moon is drawn across its possible range for the day. Add the time later and everything fills in.
Yes. The downloaded clock is a single HTML file with its astronomy engine built in. It computes the sky from your device's clock and needs no connection.
In your browser, nowhere else. The studio keeps your settings in the page address after the # sign, which browsers never send to a server, and the Constellation keeps its charts in this browser's local storage. A share link carries your birth data unless you choose to share without it.
Tropical with Placidus, Porphyry or Whole Sign houses for the Western layers, and sidereal Lahiri for the Vedic layers: nakshatras, tithi and Vimshottari daśā. Traditional or modern rulerships, true or mean nodes, and Western or Vedic planetary hours are all settings.
Yes. The Constellation holds up to six charts, with layered synastry, composite and Davison charts, and shared transits. Add a chart only with that person's consent. Charts stay in this browser and can be deleted at any time.
That arrives with the Observatory: a daily digest by WhatsApp, SMS or email at the hour you set, with replies answered in the same thread. Join the waitlist and we will write when it opens.
Hermes reads conditions, not outcomes. Each answer names the transit, hour or lunar phase behind it so you can weigh it yourself. Decisions about health, law and money stay with you and the professionals you trust.
ZODIAL.ai