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Every retrograde,
in your calendar.

One subscription puts every station, cazimi and shadow of all eight planets into the calendar you already use, at the exact minute in your own time zone. The next one: Mercury stations retrograde February 9, 2027 at 17:36 UTC.

Subscribe · all planets Add to Google Calendar Mercury only

One planet: ☿ Mercury · ♀ Venus · ♂ Mars · ♃ Jupiter · ♄ Saturn · ♅ Uranus · ♆ Neptune · ♇ Pluto. Feed URL to paste anywhere: https://cazimi.live/v1/calendar/retrogrades.ics. Free, no account, refreshed daily.

Download 2027–2028

Every retrograde of all eight planets in 2027 and 2028 as a file: import the iCal file once into any calendar (it will not update, unlike the subscription above), or print the PDF table.

iCal file (.ics) PDF to print

The next twelve months

Each line is one event in the feed. Times are UTC; the last column is your time zone (UTC).

PlanetMomentUTCYour time
♅ Uranus Opposition 3°41′ Gemini Nov 25, 2026 · 22:41
☿ Mercury Post-shadow ends Nov 30, 2026 · 06:16
♄ Saturn Station direct 7°56′ Aries Dec 10, 2026 · 23:31
♆ Neptune Station direct 1°37′ Aries Dec 12, 2026 · 22:18
♃ Jupiter Station retrograde 27°01′ Leo Dec 13, 2026 · 00:57
♀ Venus Post-shadow ends Dec 15, 2026 · 18:44
♂ Mars Station retrograde 10°26′ Virgo Jan 10, 2027 · 12:59
♇ Pluto Pre-shadow starts Jan 13, 2027 · 23:39
☿ Mercury Pre-shadow starts Jan 25, 2027 · 18:58
♇ Pluto Post-shadow ends Feb 7, 2027 · 01:16
♅ Uranus Station direct 1°41′ Gemini Feb 8, 2027 · 12:30
☿ Mercury Station retrograde 5°59′ Pisces Feb 9, 2027 · 17:36
♃ Jupiter Opposition 22°02′ Leo Feb 11, 2027 · 00:29
☿ Mercury Cazimi 29°48′ Aquarius Feb 18, 2027 · 16:39
♂ Mars Opposition 0°46′ Virgo Feb 19, 2027 · 15:51
☿ Mercury Station direct 20°55′ Aquarius Mar 3, 2027 · 12:32
♄ Saturn Post-shadow ends Mar 15, 2027 · 06:51
♆ Neptune Pre-shadow starts Mar 18, 2027 · 20:10
☿ Mercury Post-shadow ends Mar 23, 2027 · 14:58
♂ Mars Station direct 20°56′ Leo Apr 1, 2027 · 14:08
♆ Neptune Post-shadow ends Apr 2, 2027 · 19:00
♃ Jupiter Station direct 17°00′ Leo Apr 13, 2027 · 02:11
♄ Saturn Pre-shadow starts May 4, 2027 · 18:05
♇ Pluto Station retrograde 7°11′ Aquarius May 8, 2027 · 12:56
♅ Uranus Post-shadow ends May 26, 2027 · 03:47
☿ Mercury Pre-shadow starts May 26, 2027 · 06:04
♅ Uranus Pre-shadow starts May 30, 2027 · 03:47
♂ Mars Post-shadow ends Jun 8, 2027 · 01:58
☿ Mercury Station retrograde 6°22′ Cancer Jun 10, 2027 · 18:15
☿ Mercury Cazimi 1°40′ Cancer Jun 23, 2027 · 08:00
☿ Mercury Station direct 27°28′ Gemini Jul 4, 2027 · 19:39
♆ Neptune Station retrograde 6°40′ Aries Jul 9, 2027 · 22:41
♃ Jupiter Post-shadow ends Jul 11, 2027 · 04:50
☿ Mercury Post-shadow ends Jul 19, 2027 · 08:43
♇ Pluto Opposition 5°58′ Aquarius Jul 29, 2027 · 06:48
♄ Saturn Station retrograde 27°53′ Aries Aug 9, 2027 · 18:06
♅ Uranus Station retrograde 9°57′ Gemini Sep 15, 2027 · 09:09
☿ Mercury Pre-shadow starts Sep 17, 2027 · 07:29
♆ Neptune Opposition 5°14′ Aries Sep 28, 2027 · 14:19
☿ Mercury Station retrograde 4°56′ Scorpio Oct 7, 2027 · 14:37
♃ Jupiter Pre-shadow starts Oct 17, 2027 · 05:51
♄ Saturn Opposition 24°25′ Aries Oct 18, 2027 · 00:36
♇ Pluto Station direct 4°45′ Aquarius Oct 18, 2027 · 03:50
☿ Mercury Cazimi 26°01′ Libra Oct 19, 2027 · 15:31
☿ Mercury Station direct 19°19′ Libra Oct 28, 2027 · 14:11
☿ Mercury Post-shadow ends Nov 13, 2027 · 09:55

What each event means

Pre-shadow starts when the planet, still moving forward, first reaches the degree where it will later station direct. Station retrograde is the minute its longitude stops increasing. The cazimi (Mercury, Venus) is the minute it passes in front of the Sun; the opposition (Mars to Pluto) is the minute it stands opposite the Sun. Station direct is the minute it turns forward again, and the post-shadow ends when it passes the degree of the retrograde station. More on the shadow · More on the cazimi.

For developers and sites

The same events as JSON, sorted by time: /v1/planets/events.json. Per-planet cycles: /v1/planets/cycles.json. Every Mercury cycle 1900–2050: dataset with a DOI. CORS is open and there is no key. How the times were checked against JPL Horizons: accuracy. If you use the data, a link to this page is all we ask.

Questions

How do I add Mercury retrograde to Google Calendar?

On a computer, open Google Calendar, choose Other calendars → From URL, and paste https://cazimi.live/v1/calendar/mercury.ics (or https://cazimi.live/v1/calendar/retrogrades.ics for every planet). On iPhone, tap Subscribe on this page and confirm. The calendar refreshes itself, so new cycles appear without doing anything. The next event it adds for you: Mercury stations retrograde February 9, 2027 at 17:36 UTC.

What is in the retrograde calendar?

Every retrograde of Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto from 2024 to 2030: when the pre-shadow starts, the station retrograde, the cazimi (Mercury and Venus) or opposition (Mars to Pluto), the station direct and the end of the post-shadow, each to the UTC minute, plus one event spanning the retrograde itself. That is 57 cycles in all. For the next Mercury retrograde: pre-shadow January 25, 2027 at 18:58 UTC, station retrograde February 9, 2027 at 17:36 UTC, cazimi February 18, 2027 at 16:39 UTC, station direct March 3, 2027 at 12:32 UTC, post-shadow end March 23, 2027 at 14:58 UTC.

Why are the events a minute long?

A station, a cazimi and a shadow boundary are instants, not periods. Each is stored at its exact minute, so your calendar shows it at the right local time wherever you are; the retrograde itself is one event from station to station. The Mercury cazimi on February 18, 2027 at 16:39 UTC, for example, is a one-minute event at that minute.

Where do the times come from?

NASA JPL's DE421 planetary ephemeris, read with Skyfield and checked against JPL Horizons, which agrees on the February 9, 2027 at 17:36 UTC station to the minute. The same numbers are open JSON at /v1/planets/events.json and in a citable dataset with a DOI.

By Max Rachytskyy · Page updated · Times: JPL DE421 ephemeris, UTC