March 21 Zodiac Sign

March 21 by year

Scan the 1930s to 1970s for rows with a clock time. Those are the Pisces hours on March 21. Any row marked Aries all day, and every row after 1979, needs no time of birth.

Faster: enter your year above and you get your answer without the table.

Shown: 2021 to 2030. Born earlier? Tap Show all years under the table, then jump to your decade.

Times are clock times of that year in New York and Los Angeles, from the astronomy-engine ephemeris, rounded to the minute, with the daylight saving rules in force at the time. Central and Mountain time fall between the two columns.

Pisces and Aries: the two signs of March 21

In friendship and daily habits, astrology draws the two signs far apart. Aries, cardinal and fire with Mars as ruler, is read as the friend who proposes the plan and turns every errand into a race. Money is described as fast in and fast out, and a home as a place to leave from. Pisces, mutable and water, with Jupiter and then Neptune as rulers, is read as the friend who remembers the small things, lends without keeping score and loses track of a schedule.

Routine is where the descriptions differ most. Pisces is said to need an evening alone to recover from company and to keep a pile of unfinished projects within reach. Aries is said to recover through exercise or a contest, and to dislike a schedule that someone else wrote.

On this site: Moon in Pisces, Moon in Aries, Venus in Pisces, Venus in Aries, Mars in Pisces, Mars in Aries, Mercury in Pisces, Mercury in Aries.

Each sign in full: Pisces zodiac sign · Aries zodiac sign; how the two get along: Pisces and Aries compatibility.

The year ahead for both sides of March 21: Pisces horoscope 2027 · Aries horoscope 2027.

How often Pisces and Aries come up among birth dates from 1930 to 2025, and why websites name different signs for the same day: zodiac sign statistics.Aries belongs to the fire element with two other signs: fire signs.Pisces is one of the three water signs, with its own section on how much water a chart holds: water signs.

Is March 21 always Aries?

Nearly. The Eastern count has 78 Aries days and 18 split days, and no year in which March 21 was Pisces from midnight to midnight. On average 96.8% of the day sat under Aries, so a Pisces birth on March 21 takes a very early hour and a year before 1980.

Pacific time is more generous to Aries: 86 whole-day years against 10 split, because a Pacific clock reaches the same moment three hours earlier.

Why March 21 stopped being Pisces after 1979

The Sun enters Aries at the March equinox, and in these decades that moment crept earlier on US clocks. In the 1930s, 6 March 21 dates out of 10 still began in Pisces. The 1960s had 2, the 1970s 3, and from the 1980s on the count is 0.

Both the 2026 and 2027 equinoxes land on March 20 (Eastern: 10:45 a.m., then 4:24 p.m.).

What time on March 21 is still Pisces?

Only in the 18 older years, and only until the equinox minute. The 1931 row is the longest: Pisces until 9:06 a.m. that morning, then Aries. The earliest entry is 12:21 a.m. in 1979, so a baby born a half-hour after midnight that year was already an Aries.

In the Eastern count the change fell 13 times between midnight and 6 a.m. and 5 times in the morning. It never came after noon.

Questions about the March 21 zodiac sign

Other cusp birthdays

Every date where the zodiac sign depends on the year or the hour, grouped by the change of sign:

• ♓︎ Pisces to ♈︎ Aries: March 19 · March 20 · March 21
• ♈︎ Aries to ♉︎ Taurus: April 19 · April 20
• ♉︎ Taurus to ♊︎ Gemini: May 20 · May 21
• ♊︎ Gemini to ♋︎ Cancer: June 20 · June 21 · June 22
• ♋︎ Cancer to ♌︎ Leo: July 22 · July 23
• ♌︎ Leo to ♍︎ Virgo: August 22 · August 23
• ♍︎ Virgo to ♎︎ Libra: September 22 · September 23
• ♎︎ Libra to ♏︎ Scorpio: October 22 · October 23 · October 24
• ♏︎ Scorpio to ♐︎ Sagittarius: November 21 · November 22 · November 23
• ♐︎ Sagittarius to ♑︎ Capricorn: December 21 · December 22
• ♑︎ Capricorn to ♒︎ Aquarius: January 19 · January 20 · January 21
• ♒︎ Aquarius to ♓︎ Pisces: February 18 · February 19

Written by The Zodiac Atlas editorial team with the help of AI and edited by a person. Every time and count on this page comes from our own run of the astronomy-engine ephemeris (tropical zodiac) over the years 1930 to 2030, with historical US time zone rules. Astrology is a symbolic tradition, not a science.