Both stations in Libra
Mercury retrograde
September 2028.
Mercury stations retrograde at 18°36′ Libra on September 19, 2028 at 16:34 UTC and stations direct at 3°29′ Libra on October 11, 2028 at 10:28 UTC. Pre-shadow begins August 30, 2028 at 07:17 UTC, the cazimi is October 2, 2028 at 10:37 UTC, at 9°46′ Libra, and post-shadow ends October 26, 2028 at 13:50 UTC.
Dates below are UTC, to the minute.
Station dates
The five moments of the September 2028 Mercury cycle. Both stations are in Libra. The retrograde lasts 22 days.
| Phase | UTC | Your time | Degree |
|---|---|---|---|
| Pre-shadow starts | Aug 30, 2028 · 07:17 | UTC only | — |
| Station retrograde | Sep 19, 2028 · 16:34 | UTC only | 18°36′ Libra |
| Cazimi (Mercury–Sun) | Oct 2, 2028 · 10:37 | UTC only | 9°46′ Libra |
| Station direct | Oct 11, 2028 · 10:28 | UTC only | 3°29′ Libra |
| Post-shadow ends | Oct 26, 2028 · 13:50 | 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 07:25 to 13:50 UTC on October 2, 2028. How these are timed.
Signs and degrees
Mercury retraces 15°07′ of the zodiac: it stations retrograde at 18°36′ Libra and backs up to 3°29′ Libra before it stations direct. The whole loop stays in Libra. Mercury first reaches 3°29′ Libra on August 30, 2028, 20 days before the station, and clears 18°36′ Libra again on October 26, 2028, 15 days after it turns direct: 57 days on these degrees in all. The cazimi falls on day 14 of 22, at 9°46′ Libra.
The last Mercury retrograde station in Libra before this one was September 10, 2022 at 03:38 UTC, at 8°55′ Libra. The next one is September 2, 2029 at 12:18 UTC, at 1°50′ Libra. Since 1900, the closest earlier station to 18°36′ Libra came 79 years before, on September 21, 1949 at 03:49 UTC, at 19°07′ Libra, 0°31′ away.
What to do in each phase
| Phase | Dates | Traditional focus |
|---|---|---|
| Pre-shadow | Aug 30, 2028 – Sep 19, 2028 | Finish launches, back up devices, confirm travel and contract details. |
| Retrograde | Sep 19, 2028 – Oct 11, 2028 | Review, revise, reconnect. Read the fine print before you sign. |
| Cazimi | Oct 2, 2028 · 10:37 | A short, clear window inside the retrograde: set one fresh intention. |
| Post-shadow | Oct 11, 2028 – Oct 26, 2028 | Relaunch what was paused and send the revised version. |
Compared with the previous cycle
| May 2028 | This cycle | |
|---|---|---|
| Station retrograde | May 21, 2028 · 16°19′ Gemini | Sep 19, 2028 · 18°36′ Libra |
| Station direct | Jun 14, 2028 · 7°45′ Gemini | Oct 11, 2028 · 3°29′ Libra |
| Signs | Gemini | Libra |
| Length | 24 days | 22 days |
| Retrograde arc | 8°34′ | 15°07′ |
Mercury moves direct for 97 days between the two retrogrades. This one lasts 22 days, 2 days shorter than the May 2028 cycle, and its retrograde station sits 122°17′ further along the zodiac than the previous one.
Other planets retrograde at the same time
Between September 19, 2028 at 16:34 UTC and October 11, 2028 at 10:28 UTC, 4 other planets are retrograde for at least part of the time:
- Saturn in Taurus, Aug 22, 2028 to Jan 5, 2029
- Uranus in Gemini, Sep 19, 2028 to Feb 16, 2029
- Neptune in Aries, Jul 11, 2028 to Dec 16, 2028
- Pluto in Aquarius, May 9, 2028 to Oct 19, 2028
Moon during this cycle
Principal moon phases between pre-shadow on August 30, 2028 and the end of post-shadow on October 26, 2028. The third column follows your clock.
| Phase | UTC | Your time |
|---|---|---|
 Full moon | Sep 3 · 23:47 | UTC only |
 Last quarter | Sep 12 · 00:45 | UTC only |
 New moon | Sep 18 · 18:22 | UTC only |
 First quarter | Sep 25 · 13:09 | UTC only |
| Full moon | Oct 3 · 16:24 | UTC only |
| Last quarter | Oct 11 · 11:56 | UTC only |
| New moon | Oct 18 · 02:56 | UTC only |
| First quarter | Oct 25 · 04:52 | 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 2028?
Mercury stations retrograde at 18°36′ Libra on September 19, 2028 at 16:34 UTC and stations direct at 3°29′ Libra on October 11, 2028 at 10:28 UTC. Pre-shadow begins August 30, 2028 at 07:17 UTC, the cazimi is October 2, 2028 at 10:37 UTC, at 9°46′ Libra, and post-shadow ends October 26, 2028 at 13:50 UTC.
When does the September 2028 Mercury retrograde end?
Mercury stations direct on October 11, 2028 at 10:28 UTC, at 3°29′ Libra, and post-shadow ends October 26, 2028 at 13:50 UTC.
When is the Mercury cazimi in this retrograde?
The cazimi is October 2, 2028 at 10:37 UTC, at 9°46′ Libra. Mercury is within 17′ of the Sun from 07:25 to 13:50 UTC on October 2, 2028.
How long is this Mercury retrograde?
22 days from station to station in UTC calendar days, from September 19, 2028 at 16:34 UTC to October 11, 2028 at 10:28 UTC.
What sign is Mercury retrograde in, September 2028?
In Libra: both stations fall in the same sign, at 18°36′ Libra on September 19, 2028 at 16:34 UTC and at 3°29′ Libra on October 11, 2028 at 10:28 UTC.
When is the shadow of the September 2028 Mercury retrograde?
Pre-shadow runs 20 days, from August 30, 2028 at 07:17 UTC to the retrograde station; post-shadow runs 15 days, from the direct station to October 26, 2028 at 13:50 UTC. With the shadow, the cycle spans 57 days.
How does this Mercury retrograde compare with the previous one?
The previous one, May 2028, ran from May 21, 2028 at 08:43 UTC to June 14, 2028 at 06:06 UTC and lasted 24 days; this one lasts 22 days. Mercury moves direct for 97 days in between.
When was Mercury last retrograde in Libra?
The last Mercury retrograde station in Libra before this one was September 10, 2022 at 03:38 UTC, at 8°55′ Libra. The next one is September 2, 2029 at 12:18 UTC, at 1°50′ Libra.
Which other planets are retrograde during the September 2028 Mercury retrograde?
Between September 19, 2028 at 16:34 UTC and October 11, 2028 at 10:28 UTC: Saturn in Taurus, Aug 22, 2028 to Jan 5, 2029, Uranus in Gemini, Sep 19, 2028 to Feb 16, 2029, Neptune in Aries, Jul 11, 2028 to Dec 16, 2028, and Pluto in Aquarius, May 9, 2028 to Oct 19, 2028.
What should I do during this Mercury retrograde?
From September 19, 2028 at 16:34 UTC to October 11, 2028 at 10:28 UTC: Review, revise, reconnect. Read the fine print before you sign.
All 2028 dates · All planets 2028 · All planets today · Every Mercury cazimi · App Store