Robin Williams was an American actor and comedian who began in stand-up in San Francisco and Los Angeles in the mid-1970s. He became known as the alien Mork in the sitcom Mork & Mindy (1978 to 1982). His films included Good Morning, Vietnam (1987), Dead Poets Society (1989), Aladdin (1992), Mrs. Doubtfire (1993) and Jumanji (1995), and Good Will Hunting (1997) brought him an Oscar as supporting actor. He died on August 11, 2014, at 63.
What Illinois law did to birth times
Astro-Databank rates the time AA and quotes its note: "B.C. in hand from the Wilsons. Legal use of CST for the registry is assumed." A collector held the certificate, and its time is read as standard time.
The note adds that Illinois law required births to be registered in standard time until 1959, even in summers like 1951 when daylight saving time was in force. For official registers, that is the reading to use; for private recordings, the wall clock. We chart 1:34 p.m. standard time. The table also shows the other reading, the same clock time taken as daylight time, which is 12:34 p.m. standard.
| Birth time | Where it came from | Rising sign | Moon |
|---|---|---|---|
| 1:34 p.m. CST | birth record, rated AA, standard time | ♏︎ Scorpio 12°34′ | Pisces |
| 12:34 p.m. CST | same clock reading taken as daylight time | ♏︎ Scorpio 0°55′ | Pisces |
| Point | Sign at birth | In that sign | Before and after |
|---|---|---|---|
| Rising sign | ♏︎ Scorpio | 12:30 p.m. to 3:03 p.m. | Libra before, Sagittarius after |
| Midheaven | ♌︎ Leo | 12:05 p.m. to 2:03 p.m. | Cancer before, Virgo after |
| Moon | ♓︎ Pisces | all day | n/a |
Rising sign and Moon calculated by us for each time, Chicago, Central Standard Time.
Why the rising sign holds under either clock
Scorpio rose in Chicago at 12:30 p.m. and stayed up until 3:03 p.m., with Libra before it. The recorded time is 64 minutes into that stretch.
Daylight saving time ran that July, so a private clock would have been an hour ahead of the register. If 1:34 p.m. were such a clock reading, the moment is 12:34 p.m. standard time. The ascendant then falls at 0°55′ Scorpio, four minutes after the line between the signs, so Scorpio is still rising.
The midheaven is at 22°15′ Leo on the recorded time and stays in Leo under either clock reading, and the Moon is in Pisces at both times. Only the degrees shift, by 11°39′ at the ascendant. The margin is thin, but the sign holds.
Our pages: Scorpio rising · Midheaven in Leo · rising sign calculator.
Pisces Moon across from Virgo Venus
His Moon is at 9°32′ of Pisces, and any time on July 21 gives that sign. Venus is at 10°13′ of Virgo, the opposite sign, and the opposition is 0°41′ from exact.
Under Placidus the Moon is in the 4th house and Venus in the 10th; Whole Sign houses make them the 5th and 11th. The tradition gives the Moon feeling and habit and Venus taste and attachment; the opposition is read as two pulls to be balanced. That describes the symbols, not his life.
The Moon also trines Uranus, 1°18′ off, and Mars, 2°24′ off. Both are in Cancer, which is a water sign like Pisces.
Our pages: Moon in Pisces · Venus in Virgo · 4th house · moon sign calculator.
Sun at 28 degrees of Cancer
The Sun, at 28°13′ of Cancer, was about to leave the sign and moved into Leo on July 23. It stands in the 9th house in both systems, the house the tradition gives to travel, study and belief. Mars at 11°56′ and Uranus at 10°51′ are in Cancer too, 1°05′ apart.
The Sun sextiles Saturn in Virgo, 0°22′ from exact. Venus sextiles Uranus (0°38′) and Mars (1°43′). Sextiles are read as easy links.
Mercury, at 22°07′ of Leo, is conjunct Pluto at 18°49′, 3°18′ wide, and stands 0°08′ before the midheaven. Jupiter is in Aries, in the 5th house.
Our pages: Cancer · Mars in Cancer · Uranus in Cancer · Mercury in Leo · Jupiter in Aries.
All major aspects between the planets in Robin Williams's chart
- Sun sextile Saturn orb 0°22′
- Venus sextile Uranus orb 0°38′
- Moon opposition Venus orb 0°41′
- Mars conjunction Uranus orb 1°05′
- Moon trine Uranus orb 1°18′
- Venus sextile Mars orb 1°43′
- Neptune sextile Pluto orb 1°55′
- Mars square Jupiter orb 1°57′
- Moon trine Mars orb 2°24′
- Jupiter opposition Neptune orb 3°01′
- Jupiter square Uranus orb 3°02′
- Mercury conjunction Pluto orb 3°18′
- Jupiter trine Pluto orb 4°56′
- Mars square Neptune orb 4°58′
- Mercury sextile Neptune orb 5°14′
- Uranus square Neptune orb 6°03′
Orbs: 8° for conjunction, opposition, square and trine, 6° for sextile, 2° more when the Sun or Moon is involved; Node, Lilith, Ascendant and Midheaven not counted. Same rules as our birth chart calculator.
Questions about Robin Williams's chart
What was Robin Williams's rising sign?
Scorpio. The ascendant is at 12°34′ Scorpio on the 1:34 p.m. time from his birth record. The daylight-time reading, 12:34 p.m. standard, puts it at 0°55′ Scorpio.
What was Robin Williams's moon sign?
Pisces, at 9°32′, all day on July 21, 1951.
Was Robin Williams a Cancer?
Yes. Born on July 21, 1951, he had his Sun at 28°13′ of Cancer.
What time was Robin Williams born?
1:34 p.m. Central Standard Time in Chicago, from his birth record, rated AA by Astro-Databank.
Why standard time for a July birth?
Illinois law required births to be registered in standard time until 1959, even when daylight saving time was in force.
What was Robin Williams's midheaven?
At 22°15′ Leo, under either clock reading.
Sources
- Astronomy Engine: the open-source ephemeris library behind our planet positions, dates and statistics
- Astro-Databank (Astrodienst): published birth charts we test the calculation against
- How we create our readings: our own calculation of sign dates, positions and the 1930 to 2025 statistics
More celebrity birth charts
Charts closest to this one, sharing the Sun sign, the rising sign or the Moon: Lana Del Rey · Prince · Ariana Grande · Justin Bieber · Princess Diana · Katy Perry · Prince William · Anthony Bourdain · Margot Robbie · Frida Kahlo. All 143 charts with their sources and Rodden ratings: celebrity birth charts.
Astrology is a symbolic tradition, not a science. This page explains what the tradition says about the placements in a published chart; it makes no claims about Robin Williams's character, health or private life. Birth data: Astro-Databank (Astrodienst), checked October 20, 2026. Positions: our calculation with the astronomy-engine ephemeris; it matches the Sun, Moon and ascendant degrees Astro-Databank publishes for this chart to within one arc minute.