Every ingress of the Sun and planets, chronologically, with the exact UTC instant. Retrograde re-entries are marked.
In 1938 the Sun and planets change signs 54 times. Outer-planet ingresses: Saturn enters Aries on Jan 14, 1938, 10:30 UTC; Jupiter enters Pisces on May 14, 1938, 07:46 UTC; Jupiter enters Aquarius on Jul 30, 1938, 03:02 UTC (retrograde re-entry); Pluto enters Leo on Aug 3, 1938, 17:58 UTC; Jupiter enters Pisces on Dec 29, 1938, 18:34 UTC.
| Instant (UTC) | Planet | From | Into |
|---|---|---|---|
| Jan 6, 1938, 21:37 UTC | ☿ Mercury ℞ | Capricorn | Sagittarius |
| Jan 12, 1938, 22:30 UTC | ☿ Mercury | Sagittarius | Capricorn |
| Jan 14, 1938, 10:30 UTC | ♄ Saturn | Pisces | Aries |
| Jan 20, 1938, 16:58 UTC | ☉ Sun | Capricorn | Aquarius |
| Jan 23, 1938, 11:15 UTC | ♀ Venus | Capricorn | Aquarius |
| Jan 30, 1938, 12:44 UTC | ♂ Mars | Pisces | Aries |
| Feb 8, 1938, 13:17 UTC | ☿ Mercury | Capricorn | Aquarius |
| Feb 16, 1938, 09:00 UTC | ♀ Venus | Aquarius | Pisces |
| Feb 19, 1938, 07:20 UTC | ☉ Sun | Aquarius | Pisces |
| Feb 27, 1938, 03:00 UTC | ☿ Mercury | Aquarius | Pisces |
| Mar 12, 1938, 07:47 UTC | ♂ Mars | Aries | Taurus |
| Mar 12, 1938, 09:20 UTC | ♀ Venus | Pisces | Aries |
| Mar 15, 1938, 00:02 UTC | ☿ Mercury | Pisces | Aries |
| Mar 21, 1938, 06:43 UTC | ☉ Sun | Pisces | Aries |
| Apr 1, 1938, 13:23 UTC | ☿ Mercury | Aries | Taurus |
| Apr 5, 1938, 13:46 UTC | ♀ Venus | Aries | Taurus |
| Apr 20, 1938, 18:14 UTC | ☉ Sun | Aries | Taurus |
| Apr 23, 1938, 13:56 UTC | ☿ Mercury ℞ | Taurus | Aries |
| Apr 23, 1938, 18:39 UTC | ♂ Mars | Taurus | Gemini |
| Apr 29, 1938, 23:35 UTC | ♀ Venus | Taurus | Gemini |
| May 14, 1938, 07:46 UTC | ♃ Jupiter | Aquarius | Pisces |
| May 16, 1938, 17:46 UTC | ☿ Mercury | Aries | Taurus |
| May 21, 1938, 17:50 UTC | ☉ Sun | Taurus | Gemini |
| May 24, 1938, 15:56 UTC | ♀ Venus | Gemini | Cancer |
| Jun 7, 1938, 01:28 UTC | ♂ Mars | Gemini | Cancer |
| Jun 8, 1938, 00:32 UTC | ☿ Mercury | Taurus | Gemini |
| Jun 18, 1938, 16:37 UTC | ♀ Venus | Cancer | Leo |
| Jun 22, 1938, 02:03 UTC | ☉ Sun | Gemini | Cancer |
| Jun 22, 1938, 13:09 UTC | ☿ Mercury | Gemini | Cancer |
| Jul 7, 1938, 03:21 UTC | ☿ Mercury | Cancer | Leo |
| Jul 14, 1938, 05:44 UTC | ♀ Venus | Leo | Virgo |
| Jul 22, 1938, 22:26 UTC | ♂ Mars | Cancer | Leo |
| Jul 23, 1938, 12:57 UTC | ☉ Sun | Cancer | Leo |
| Jul 26, 1938, 22:54 UTC | ☿ Mercury | Leo | Virgo |
| Jul 30, 1938, 03:02 UTC | ♃ Jupiter ℞ | Pisces | Aquarius |
| Aug 3, 1938, 17:58 UTC | ♇ Pluto | Cancer | Leo |
| Aug 9, 1938, 16:26 UTC | ♀ Venus | Virgo | Libra |
| Aug 23, 1938, 19:46 UTC | ☉ Sun | Leo | Virgo |
| Sep 3, 1938, 02:58 UTC | ☿ Mercury ℞ | Virgo | Leo |
| Sep 7, 1938, 01:36 UTC | ♀ Venus | Libra | Scorpio |
| Sep 7, 1938, 20:22 UTC | ♂ Mars | Leo | Virgo |
| Sep 10, 1938, 15:38 UTC | ☿ Mercury | Leo | Virgo |
| Sep 23, 1938, 16:59 UTC | ☉ Sun | Virgo | Libra |
| Oct 1, 1938, 04:18 UTC | ☿ Mercury | Virgo | Libra |
| Oct 13, 1938, 18:49 UTC | ♀ Venus | Scorpio | Sagittarius |
| Oct 18, 1938, 12:43 UTC | ☿ Mercury | Libra | Scorpio |
| Oct 24, 1938, 01:54 UTC | ☉ Sun | Libra | Scorpio |
| Oct 25, 1938, 06:20 UTC | ♂ Mars | Virgo | Libra |
| Nov 6, 1938, 23:33 UTC | ☿ Mercury | Scorpio | Sagittarius |
| Nov 15, 1938, 16:07 UTC | ♀ Venus ℞ | Sagittarius | Scorpio |
| Nov 22, 1938, 23:06 UTC | ☉ Sun | Scorpio | Sagittarius |
| Dec 11, 1938, 23:25 UTC | ♂ Mars | Libra | Scorpio |
| Dec 22, 1938, 12:13 UTC | ☉ Sun | Sagittarius | Capricorn |
| Dec 29, 1938, 18:34 UTC | ♃ Jupiter | Aquarius | Pisces |