Station in Scorpio · direct in Libra
Mercury retrograde
October 2027.
Mercury stations retrograde at 4°56′ Scorpio on October 7, 2027 at 14:37 UTC and stations direct at 19°19′ Libra on October 28, 2027 at 14:11 UTC. Pre-shadow begins September 17, 2027 at 07:29 UTC, the cazimi is October 19, 2027 at 15:31 UTC, at 26°01′ Libra, and post-shadow ends November 13, 2027 at 09:55 UTC.
Dates below are UTC, to the minute.
Station dates
The five moments of the October 2027 Mercury cycle. Mercury stations retrograde in Scorpio and direct in Libra, so the cycle is named for both signs. The retrograde lasts 21 days.
| Phase | UTC | Your time | Degree |
|---|---|---|---|
| Pre-shadow starts | Sep 17, 2027 · 07:29 | UTC only | — |
| Station retrograde | Oct 7, 2027 · 14:37 | UTC only | 4°56′ Scorpio |
| Cazimi (Mercury–Sun) | Oct 19, 2027 · 15:31 | UTC only | 26°01′ Libra |
| Station direct | Oct 28, 2027 · 14:11 | UTC only | 19°19′ Libra |
| Post-shadow ends | Nov 13, 2027 · 09:55 | UTC only | — |
The cazimi is the inferior conjunction: Mercury passes between Earth and the Sun, in the middle of the retrograde. Mercury is within 17′ of the Sun from 12:27 to 18:34 UTC on October 19, 2027. How these are timed.
Signs and degrees
Mercury retraces 15°37′ of the zodiac: it stations retrograde at 4°56′ Scorpio and backs up to 19°19′ Libra before it stations direct. On the way back it leaves Scorpio and returns to Libra, so this retrograde touches two signs. Mercury first reaches 19°19′ Libra on September 17, 2027, 20 days before the station, and clears 4°56′ Scorpio again on November 13, 2027, 16 days after it turns direct: 57 days on these degrees in all. The cazimi falls on day 13 of 21, at 26°01′ Libra.
The last Mercury retrograde station in Scorpio before this one was October 24, 2026 at 07:13 UTC, at 20°59′ Scorpio. The next one is October 16, 2033 at 22:03 UTC, at 14°16′ Scorpio. Since 1900, the closest earlier station to 4°56′ Scorpio came 79 years before, on October 8, 1948 at 01:22 UTC, at 5°25′ Scorpio, 0°29′ away.
What to do in each phase
| Phase | Dates | Traditional focus |
|---|---|---|
| Pre-shadow | Sep 17, 2027 – Oct 7, 2027 | Finish launches, back up devices, confirm travel and contract details. |
| Retrograde | Oct 7, 2027 – Oct 28, 2027 | Review, revise, reconnect. Read the fine print before you sign. |
| Cazimi | Oct 19, 2027 · 15:31 | A short, clear window inside the retrograde: set one fresh intention. |
| Post-shadow | Oct 28, 2027 – Nov 13, 2027 | Relaunch what was paused and send the revised version. |
Compared with the previous cycle
| June 2027 | This cycle | |
|---|---|---|
| Station retrograde | Jun 10, 2027 · 6°22′ Cancer | Oct 7, 2027 · 4°56′ Scorpio |
| Station direct | Jul 4, 2027 · 27°28′ Gemini | Oct 28, 2027 · 19°19′ Libra |
| Signs | Cancer → Gemini | Scorpio → Libra |
| Length | 24 days | 21 days |
| Retrograde arc | 8°54′ | 15°37′ |
Mercury moves direct for 95 days between the two retrogrades. This one lasts 21 days, 3 days shorter than the June 2027 cycle, and its retrograde station sits 118°34′ further along the zodiac than the previous one.
Other planets retrograde at the same time
Between October 7, 2027 at 14:37 UTC and October 28, 2027 at 14:11 UTC, 4 other planets are retrograde for at least part of the time:
- Saturn in Aries, Aug 9, 2027 to Dec 24, 2027
- Uranus in Gemini, Sep 15, 2027 to Feb 12, 2028
- Neptune in Aries, Jul 9, 2027 to Dec 15, 2027
- Pluto in Aquarius, May 8, 2027 to Oct 18, 2027
Moon during this cycle
Principal moon phases between pre-shadow on September 17, 2027 and the end of post-shadow on November 13, 2027. The third column follows your clock.
| Phase | UTC | Your time |
|---|---|---|
 Last quarter | Sep 23 · 10:20 | UTC only |
 New moon | Sep 30 · 02:36 | UTC only |
 First quarter | Oct 7 · 11:47 | UTC only |
 Full moon | Oct 15 · 13:46 | UTC only |
| Last quarter | Oct 22 · 17:29 | UTC only |
| New moon | Oct 29 · 13:37 | UTC only |
| First quarter | Nov 6 · 07:59 | UTC only |
Moon photographs: NASA Scientific Visualization Studio. All moon phases, 2025–2030.
In the app
Cazimi uses these timestamps for status, the Phase Planner, notifications, and widgets. Cycle status, the daily action, planner, journal history, orbit, cazimi window, and the calendar through 2026 are free. The full Mercury Signal, cycle recap, widgets, playbook, and calendar through 2030 are Premium; the app shows current options and prices before purchase.
Questions
When is Mercury retrograde in October 2027?
Mercury stations retrograde at 4°56′ Scorpio on October 7, 2027 at 14:37 UTC and stations direct at 19°19′ Libra on October 28, 2027 at 14:11 UTC. Pre-shadow begins September 17, 2027 at 07:29 UTC, the cazimi is October 19, 2027 at 15:31 UTC, at 26°01′ Libra, and post-shadow ends November 13, 2027 at 09:55 UTC.
When does the October 2027 Mercury retrograde end?
Mercury stations direct on October 28, 2027 at 14:11 UTC, at 19°19′ Libra, and post-shadow ends November 13, 2027 at 09:55 UTC.
When is the Mercury cazimi in this retrograde?
The cazimi is October 19, 2027 at 15:31 UTC, at 26°01′ Libra. Mercury is within 17′ of the Sun from 12:27 to 18:34 UTC on October 19, 2027.
How long is this Mercury retrograde?
21 days from station to station in UTC calendar days, from October 7, 2027 at 14:37 UTC to October 28, 2027 at 14:11 UTC.
What sign is Mercury retrograde in, October 2027?
Mercury stations retrograde at 4°56′ Scorpio on October 7, 2027 at 14:37 UTC and stations direct at 19°19′ Libra on October 28, 2027 at 14:11 UTC, so this retrograde covers Scorpio and Libra.
When is the shadow of the October 2027 Mercury retrograde?
Pre-shadow runs 20 days, from September 17, 2027 at 07:29 UTC to the retrograde station; post-shadow runs 16 days, from the direct station to November 13, 2027 at 09:55 UTC. With the shadow, the cycle spans 57 days.
How does this Mercury retrograde compare with the previous one?
The previous one, June 2027, ran from June 10, 2027 at 18:15 UTC to July 4, 2027 at 19:39 UTC and lasted 24 days; this one lasts 21 days. Mercury moves direct for 95 days in between.
When was Mercury last retrograde in Scorpio?
The last Mercury retrograde station in Scorpio before this one was October 24, 2026 at 07:13 UTC, at 20°59′ Scorpio. The next one is October 16, 2033 at 22:03 UTC, at 14°16′ Scorpio.
Which other planets are retrograde during the October 2027 Mercury retrograde?
Between October 7, 2027 at 14:37 UTC and October 28, 2027 at 14:11 UTC: Saturn in Aries, Aug 9, 2027 to Dec 24, 2027, Uranus in Gemini, Sep 15, 2027 to Feb 12, 2028, Neptune in Aries, Jul 9, 2027 to Dec 15, 2027, and Pluto in Aquarius, May 8, 2027 to Oct 18, 2027.
What should I do during this Mercury retrograde?
From October 7, 2027 at 14:37 UTC to October 28, 2027 at 14:11 UTC: Review, revise, reconnect. Read the fine print before you sign.
All 2027 dates · All planets 2027 · All planets today · Every Mercury cazimi · App Store