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March 21 zodiac sign: Aries

If you were born on March 21, your zodiac sign is Aries (March 21 – April 19). It is a cardinal fire sign ruled by Mars.

Sign: ♈ Aries
Element: fire
Modality: cardinal
Ruling planet: Mars
Decan: 1st decan (0–10°), Mars
Tarot card of the sign: The Emperor
Decan card: Two of Wands
Day number: 3
Birthstone: aquamarine

Is March 21 a cusp date?

Across 1950–2025 (76 years), on March 21 the Sun was: all day in Aries: 68 years; changed from Pisces to Aries during the day: 8 years. If you were born in a change year, your birth time decides: before the Sun's ingress you have the earlier sign, after it the new one.

US Eastern time

Time of the sign change in each year (US Eastern time)

1951: 05:25
1955: 04:35
1959: 03:54
1963: 03:19
1967: 02:37
1971: 01:38
1975: 01:56
1979: 00:22

Traits: Aries

Aries opens the zodiac and likes to open everything else too. Brave, direct and quick to decide, Aries thrives wherever someone has to take the lead. The challenge is patience and finishing what was started.

1st decan: Mars adds courage, pace and the urge to act straight away.

Birthday numerology: 21

Three: expression, humour and ease with words and creating.

Best matches

Traditionally Aries gets on most easily with signs of the same element (Leo, Sagittarius) and with the complementary element, air (Gemini, Libra, Aquarius).

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Questions

What zodiac sign is March 21?

If you were born on March 21, your zodiac sign is Aries (March 21 – April 19). It is a cardinal fire sign ruled by Mars.

Which tarot card matches March 21?

Aries corresponds to The Emperor in tarot, and the 1st decan to the Two of Wands.

What does birthday number 21 mean?