Station in Libra · direct in Virgo
Mercury retrograde
September 2029.
Mercury stations retrograde at 1°50′ Libra on September 2, 2029 at 12:18 UTC and stations direct at 17°27′ Virgo on September 25, 2029 at 02:02 UTC. Pre-shadow begins August 13, 2029 at 09:10 UTC, the cazimi is September 15, 2029 at 21:11 UTC, at 23°19′ Virgo, and post-shadow ends October 9, 2029 at 16:21 UTC.
Dates below are UTC, to the minute.
Station dates
The five moments of the September 2029 Mercury cycle. Mercury stations retrograde in Libra and direct in Virgo, so the cycle is named for both signs. The retrograde lasts 23 days.
| Phase | UTC | Your time | Degree |
|---|---|---|---|
| Pre-shadow starts | Aug 13, 2029 · 09:10 | UTC only | — |
| Station retrograde | Sep 2, 2029 · 12:18 | UTC only | 1°50′ Libra |
| Cazimi (Mercury–Sun) | Sep 15, 2029 · 21:11 | UTC only | 23°19′ Virgo |
| Station direct | Sep 25, 2029 · 02:02 | UTC only | 17°27′ Virgo |
| Post-shadow ends | Oct 9, 2029 · 16:21 | 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 September 15, 2029 at 17:48 UTC to September 16, 2029 at 00:34 UTC. How these are timed.
Signs and degrees
Mercury retraces 14°23′ of the zodiac: it stations retrograde at 1°50′ Libra and backs up to 17°27′ Virgo before it stations direct. On the way back it leaves Libra and returns to Virgo, so this retrograde touches two signs. Mercury first reaches 17°27′ Virgo on August 13, 2029, 20 days before the station, and clears 1°50′ Libra again on October 9, 2029, 14 days after it turns direct: 57 days on these degrees in all. The cazimi falls on day 14 of 23, at 23°19′ Virgo.
The last Mercury retrograde station in Libra before this one was September 19, 2028 at 16:34 UTC, at 18°36′ Libra. The next one is September 30, 2034 at 03:00 UTC, at 28°07′ Libra. Since 1900, the closest earlier station to 1°50′ Libra came 125 years before, on September 2, 1904 at 18:36 UTC, at 1°21′ Libra, 0°29′ away.
What to do in each phase
| Phase | Dates | Traditional focus |
|---|---|---|
| Pre-shadow | Aug 13, 2029 – Sep 2, 2029 | Finish launches, back up devices, confirm travel and contract details. |
| Retrograde | Sep 2, 2029 – Sep 25, 2029 | Review, revise, reconnect. Read the fine print before you sign. |
| Cazimi | Sep 15, 2029 · 21:11 | A short, clear window inside the retrograde: set one fresh intention. |
| Post-shadow | Sep 25, 2029 – Oct 9, 2029 | Relaunch what was paused and send the revised version. |
Compared with the previous cycle
| May 2029 | This cycle | |
|---|---|---|
| Station retrograde | May 1, 2029 · 26°40′ Taurus | Sep 2, 2029 · 1°50′ Libra |
| Station direct | May 25, 2029 · 17°34′ Taurus | Sep 25, 2029 · 17°27′ Virgo |
| Signs | Taurus | Libra → Virgo |
| Length | 24 days | 23 days |
| Retrograde arc | 9°06′ | 14°23′ |
Mercury moves direct for 100 days between the two retrogrades. This one lasts 23 days, 1 day shorter than the May 2029 cycle, and its retrograde station sits 125°10′ further along the zodiac than the previous one.
Other planets retrograde at the same time
Between September 2, 2029 at 12:18 UTC and September 25, 2029 at 02:02 UTC, 4 other planets are retrograde for at least part of the time:
- Saturn in Taurus, Sep 6, 2029 to Jan 19, 2030
- Uranus in Gemini, Sep 23, 2029 to Feb 20, 2030
- Neptune in Aries, Jul 14, 2029 to Dec 19, 2029
- Pluto in Aquarius, May 11, 2029 to Oct 21, 2029
Moon during this cycle
Principal moon phases between pre-shadow on August 13, 2029 and the end of post-shadow on October 9, 2029. The third column follows your clock.
| Phase | UTC | Your time |
|---|---|---|
 First quarter | Aug 16 · 18:55 | UTC only |
 Full moon | Aug 24 · 01:51 | UTC only |
 Last quarter | Sep 1 · 04:33 | UTC only |
 New moon | Sep 8 · 10:42 | UTC only |
| First quarter | Sep 15 · 01:29 | UTC only |
| Full moon | Sep 22 · 16:29 | UTC only |
| Last quarter | Sep 30 · 20:56 | UTC only |
| New moon | Oct 7 · 19:12 | 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 September 2029?
Mercury stations retrograde at 1°50′ Libra on September 2, 2029 at 12:18 UTC and stations direct at 17°27′ Virgo on September 25, 2029 at 02:02 UTC. Pre-shadow begins August 13, 2029 at 09:10 UTC, the cazimi is September 15, 2029 at 21:11 UTC, at 23°19′ Virgo, and post-shadow ends October 9, 2029 at 16:21 UTC.
When does the September 2029 Mercury retrograde end?
Mercury stations direct on September 25, 2029 at 02:02 UTC, at 17°27′ Virgo, and post-shadow ends October 9, 2029 at 16:21 UTC.
When is the Mercury cazimi in this retrograde?
The cazimi is September 15, 2029 at 21:11 UTC, at 23°19′ Virgo. Mercury is within 17′ of the Sun from September 15, 2029 at 17:48 UTC to September 16, 2029 at 00:34 UTC.
How long is this Mercury retrograde?
23 days from station to station in UTC calendar days, from September 2, 2029 at 12:18 UTC to September 25, 2029 at 02:02 UTC.
What sign is Mercury retrograde in, September 2029?
Mercury stations retrograde at 1°50′ Libra on September 2, 2029 at 12:18 UTC and stations direct at 17°27′ Virgo on September 25, 2029 at 02:02 UTC, so this retrograde covers Libra and Virgo.
When is the shadow of the September 2029 Mercury retrograde?
Pre-shadow runs 20 days, from August 13, 2029 at 09:10 UTC to the retrograde station; post-shadow runs 14 days, from the direct station to October 9, 2029 at 16:21 UTC. With the shadow, the cycle spans 57 days.
How does this Mercury retrograde compare with the previous one?
The previous one, May 2029, ran from May 1, 2029 at 23:05 UTC to May 25, 2029 at 19:21 UTC and lasted 24 days; this one lasts 23 days. Mercury moves direct for 100 days in between.
When was Mercury last retrograde in Libra?
The last Mercury retrograde station in Libra before this one was September 19, 2028 at 16:34 UTC, at 18°36′ Libra. The next one is September 30, 2034 at 03:00 UTC, at 28°07′ Libra.
Which other planets are retrograde during the September 2029 Mercury retrograde?
Between September 2, 2029 at 12:18 UTC and September 25, 2029 at 02:02 UTC: Saturn in Taurus, Sep 6, 2029 to Jan 19, 2030, Uranus in Gemini, Sep 23, 2029 to Feb 20, 2030, Neptune in Aries, Jul 14, 2029 to Dec 19, 2029, and Pluto in Aquarius, May 11, 2029 to Oct 21, 2029.
What should I do during this Mercury retrograde?
From September 2, 2029 at 12:18 UTC to September 25, 2029 at 02:02 UTC: Review, revise, reconnect. Read the fine print before you sign.
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