Every ingress of the Sun and planets, chronologically, with the exact UTC instant. Retrograde re-entries are marked.
In 1915 the Sun and planets change signs 52 times. Outer-planet ingresses: Jupiter enters Pisces on Feb 4, 1915, 00:43 UTC; Saturn enters Cancer on May 11, 1915, 21:23 UTC; Neptune enters Leo on Jul 19, 1915, 13:32 UTC.
| Instant (UTC) | Planet | From | Into |
|---|---|---|---|
| Jan 15, 1915, 04:28 UTC | ☿ Mercury | Capricorn | Aquarius |
| Jan 21, 1915, 03:00 UTC | ☉ Sun | Capricorn | Aquarius |
| Jan 30, 1915, 06:12 UTC | ♂ Mars | Capricorn | Aquarius |
| Feb 2, 1915, 10:32 UTC | ☿ Mercury | Aquarius | Pisces |
| Feb 4, 1915, 00:43 UTC | ♃ Jupiter | Aquarius | Pisces |
| Feb 6, 1915, 15:57 UTC | ♀ Venus | Sagittarius | Capricorn |
| Feb 19, 1915, 17:23 UTC | ☉ Sun | Aquarius | Pisces |
| Feb 23, 1915, 15:05 UTC | ☿ Mercury ℞ | Pisces | Aquarius |
| Mar 6, 1915, 13:15 UTC | ♀ Venus | Capricorn | Aquarius |
| Mar 9, 1915, 12:56 UTC | ♂ Mars | Aquarius | Pisces |
| Mar 19, 1915, 08:46 UTC | ☿ Mercury | Aquarius | Pisces |
| Mar 21, 1915, 16:51 UTC | ☉ Sun | Pisces | Aries |
| Apr 1, 1915, 15:19 UTC | ♀ Venus | Aquarius | Pisces |
| Apr 10, 1915, 19:22 UTC | ☿ Mercury | Pisces | Aries |
| Apr 16, 1915, 20:41 UTC | ♂ Mars | Pisces | Aries |
| Apr 21, 1915, 04:29 UTC | ☉ Sun | Aries | Taurus |
| Apr 26, 1915, 21:40 UTC | ☿ Mercury | Aries | Taurus |
| Apr 27, 1915, 00:56 UTC | ♀ Venus | Pisces | Aries |
| May 10, 1915, 23:46 UTC | ☿ Mercury | Taurus | Gemini |
| May 11, 1915, 21:23 UTC | ♄ Saturn | Gemini | Cancer |
| May 22, 1915, 02:56 UTC | ♀ Venus | Aries | Taurus |
| May 22, 1915, 04:11 UTC | ☉ Sun | Taurus | Gemini |
| May 26, 1915, 03:08 UTC | ♂ Mars | Aries | Taurus |
| May 29, 1915, 10:34 UTC | ☿ Mercury | Gemini | Cancer |
| Jun 16, 1915, 00:21 UTC | ♀ Venus | Taurus | Gemini |
| Jun 22, 1915, 12:29 UTC | ☉ Sun | Gemini | Cancer |
| Jul 6, 1915, 06:23 UTC | ♂ Mars | Taurus | Gemini |
| Jul 10, 1915, 17:31 UTC | ♀ Venus | Gemini | Cancer |
| Jul 19, 1915, 13:32 UTC | ♆ Neptune | Cancer | Leo |
| Jul 23, 1915, 23:27 UTC | ☉ Sun | Cancer | Leo |
| Aug 4, 1915, 05:47 UTC | ♀ Venus | Cancer | Leo |
| Aug 4, 1915, 09:00 UTC | ☿ Mercury | Cancer | Leo |
| Aug 19, 1915, 04:38 UTC | ☿ Mercury | Leo | Virgo |
| Aug 19, 1915, 09:09 UTC | ♂ Mars | Gemini | Cancer |
| Aug 24, 1915, 06:15 UTC | ☉ Sun | Leo | Virgo |
| Aug 28, 1915, 13:06 UTC | ♀ Venus | Leo | Virgo |
| Sep 5, 1915, 09:02 UTC | ☿ Mercury | Virgo | Libra |
| Sep 21, 1915, 16:31 UTC | ♀ Venus | Virgo | Libra |
| Sep 24, 1915, 03:24 UTC | ☉ Sun | Virgo | Libra |
| Sep 28, 1915, 08:10 UTC | ☿ Mercury | Libra | Scorpio |
| Oct 7, 1915, 20:48 UTC | ♂ Mars | Cancer | Leo |
| Oct 15, 1915, 17:42 UTC | ♀ Venus | Libra | Scorpio |
| Oct 21, 1915, 01:13 UTC | ☿ Mercury ℞ | Scorpio | Libra |
| Oct 24, 1915, 12:09 UTC | ☉ Sun | Libra | Scorpio |
| Nov 8, 1915, 18:07 UTC | ♀ Venus | Scorpio | Sagittarius |
| Nov 11, 1915, 14:08 UTC | ☿ Mercury | Libra | Scorpio |
| Nov 23, 1915, 09:14 UTC | ☉ Sun | Scorpio | Sagittarius |
| Dec 1, 1915, 09:17 UTC | ☿ Mercury | Scorpio | Sagittarius |
| Dec 2, 1915, 18:38 UTC | ♀ Venus | Sagittarius | Capricorn |
| Dec 20, 1915, 11:14 UTC | ☿ Mercury | Sagittarius | Capricorn |
| Dec 22, 1915, 22:16 UTC | ☉ Sun | Sagittarius | Capricorn |
| Dec 26, 1915, 20:20 UTC | ♀ Venus | Capricorn | Aquarius |