Every ingress of the Sun and planets, chronologically, with the exact UTC instant. Retrograde re-entries are marked.
In 2012 the Sun and planets change signs 47 times. Outer-planet ingresses: Neptune enters Pisces on Feb 3, 2012, 19:03 UTC; Jupiter enters Gemini on Jun 11, 2012, 17:22 UTC; Saturn enters Scorpio on Oct 5, 2012, 20:34 UTC.
| Instant (UTC) | Planet | From | Into |
|---|---|---|---|
| Jan 8, 2012, 06:33 UTC | ☿ Mercury | Sagittarius | Capricorn |
| Jan 14, 2012, 05:48 UTC | ♀ Venus | Aquarius | Pisces |
| Jan 20, 2012, 16:10 UTC | ☉ Sun | Capricorn | Aquarius |
| Jan 27, 2012, 18:12 UTC | ☿ Mercury | Capricorn | Aquarius |
| Feb 3, 2012, 19:03 UTC | ♆ Neptune | Aquarius | Pisces |
| Feb 8, 2012, 06:01 UTC | ♀ Venus | Pisces | Aries |
| Feb 14, 2012, 01:38 UTC | ☿ Mercury | Aquarius | Pisces |
| Feb 19, 2012, 06:18 UTC | ☉ Sun | Aquarius | Pisces |
| Mar 2, 2012, 11:41 UTC | ☿ Mercury | Pisces | Aries |
| Mar 5, 2012, 10:25 UTC | ♀ Venus | Aries | Taurus |
| Mar 20, 2012, 05:15 UTC | ☉ Sun | Pisces | Aries |
| Mar 23, 2012, 13:23 UTC | ☿ Mercury ℞ | Aries | Pisces |
| Apr 3, 2012, 15:18 UTC | ♀ Venus | Taurus | Gemini |
| Apr 16, 2012, 22:42 UTC | ☿ Mercury | Pisces | Aries |
| Apr 19, 2012, 16:12 UTC | ☉ Sun | Aries | Taurus |
| May 9, 2012, 05:15 UTC | ☿ Mercury | Aries | Taurus |
| May 20, 2012, 15:16 UTC | ☉ Sun | Taurus | Gemini |
| May 24, 2012, 11:12 UTC | ☿ Mercury | Taurus | Gemini |
| Jun 7, 2012, 11:16 UTC | ☿ Mercury | Gemini | Cancer |
| Jun 11, 2012, 17:22 UTC | ♃ Jupiter | Taurus | Gemini |
| Jun 20, 2012, 23:09 UTC | ☉ Sun | Gemini | Cancer |
| Jun 26, 2012, 02:24 UTC | ☿ Mercury | Cancer | Leo |
| Jul 3, 2012, 12:31 UTC | ♂ Mars | Virgo | Libra |
| Jul 22, 2012, 10:01 UTC | ☉ Sun | Cancer | Leo |
| Aug 7, 2012, 13:43 UTC | ♀ Venus | Gemini | Cancer |
| Aug 22, 2012, 17:07 UTC | ☉ Sun | Leo | Virgo |
| Aug 23, 2012, 15:24 UTC | ♂ Mars | Libra | Scorpio |
| Sep 1, 2012, 02:32 UTC | ☿ Mercury | Leo | Virgo |
| Sep 6, 2012, 14:48 UTC | ♀ Venus | Cancer | Leo |
| Sep 16, 2012, 23:22 UTC | ☿ Mercury | Virgo | Libra |
| Sep 22, 2012, 14:49 UTC | ☉ Sun | Virgo | Libra |
| Oct 3, 2012, 06:59 UTC | ♀ Venus | Leo | Virgo |
| Oct 5, 2012, 10:35 UTC | ☿ Mercury | Libra | Scorpio |
| Oct 5, 2012, 20:34 UTC | ♄ Saturn | Libra | Scorpio |
| Oct 7, 2012, 03:21 UTC | ♂ Mars | Scorpio | Sagittarius |
| Oct 23, 2012, 00:14 UTC | ☉ Sun | Libra | Scorpio |
| Oct 28, 2012, 13:04 UTC | ♀ Venus | Virgo | Libra |
| Oct 29, 2012, 06:18 UTC | ☿ Mercury | Scorpio | Sagittarius |
| Nov 14, 2012, 07:42 UTC | ☿ Mercury ℞ | Sagittarius | Scorpio |
| Nov 17, 2012, 02:36 UTC | ♂ Mars | Sagittarius | Capricorn |
| Nov 21, 2012, 21:50 UTC | ☉ Sun | Scorpio | Sagittarius |
| Nov 22, 2012, 01:20 UTC | ♀ Venus | Libra | Scorpio |
| Dec 11, 2012, 01:39 UTC | ☿ Mercury | Scorpio | Sagittarius |
| Dec 16, 2012, 04:38 UTC | ♀ Venus | Scorpio | Sagittarius |
| Dec 21, 2012, 11:12 UTC | ☉ Sun | Sagittarius | Capricorn |
| Dec 26, 2012, 00:49 UTC | ♂ Mars | Capricorn | Aquarius |
| Dec 31, 2012, 14:03 UTC | ☿ Mercury | Sagittarius | Capricorn |