Birthdays

Born on March 21

Sun sign
Pisces or Aries — the Pisces–Aries boundary lands here
1940–2030
whole day Pisces in 0 years · whole day Aries in 64 · split at the ingress in 27
In 2026
Aries all day
Sun degrees
0°00′ Aries – 1°23′ Aries · noon UTC, 1940–2030
Decan
last decan of Pisces or first of Aries — the ingress decides
This year
March 21, 2026: Sun 0°52′ Aries · Moon in Taurus at noon UTC
The year-by-year table, 1940–2030
1940Aries1941Pisces → Aries 00:20 UTC1942Pisces → Aries 06:09 UTC1943Pisces → Aries 12:02 UTC1944Aries1945Aries1946Pisces → Aries 05:32 UTC1947Pisces → Aries 11:12 UTC1948Aries1949Aries1950Pisces → Aries 04:34 UTC1951Pisces → Aries 10:25 UTC1952Aries1953Aries1954Pisces → Aries 03:53 UTC1955Pisces → Aries 09:35 UTC1956Aries1957Aries1958Pisces → Aries 03:05 UTC1959Pisces → Aries 08:54 UTC1960Aries1961Aries1962Pisces → Aries 02:29 UTC1963Pisces → Aries 08:19 UTC1964Aries1965Aries1966Pisces → Aries 01:52 UTC1967Pisces → Aries 07:36 UTC1968Aries1969Aries1970Pisces → Aries 00:56 UTC1971Pisces → Aries 06:38 UTC1972Aries1973Aries1974Pisces → Aries 00:06 UTC1975Pisces → Aries 05:56 UTC1976Aries1977Aries1978Aries1979Pisces → Aries 05:21 UTC1980Aries1981Aries1982Aries1983Pisces → Aries 04:38 UTC1984Aries1985Aries1986Aries1987Pisces → Aries 03:51 UTC1988Aries1989Aries1990Aries1991Pisces → Aries 03:02 UTC1992Aries1993Aries1994Aries1995Pisces → Aries 02:14 UTC1996Aries1997Aries1998Aries1999Pisces → Aries 01:45 UTC2000Aries2001Aries2002Aries2003Pisces → Aries 01:00 UTC2004Aries2005Aries2006Aries2007Pisces → Aries 00:07 UTC2008Aries2009Aries2010Aries2011Aries2012Aries2013Aries2014Aries2015Aries2016Aries2017Aries2018Aries2019Aries2020Aries2021Aries2022Aries2023Aries2024Aries2025Aries2026Aries2027Aries2028Aries2029Aries2030Aries

Times are universal time — convert your birth time before reading your year.

Tradition calls March 21 the first day of Aries, and tradition is usually right — but only usually. In roughly seven years out of ten since 1940, the Sun has already crossed the equinox point before this date begins, and the whole day is Aries. In the other three, the crossing happens during March 21 itself: a dawn birth in those years is still Pisces, an evening one Aries. The year table above says which kind of March 21 was yours; no year here ends still in Pisces.

Two signs claim the day

Even confirmed-Aries March 21s tend to carry a watery afterglow — born with the Sun barely a step into the new sign, the old one still visible behind it. The Aries Sun supplies the essentials: directness, appetite for beginnings, honesty at speed. The Pisces Sun, where the table grants it, softens the edges: intuition ahead of action, a gentler read on people. Either way, this birthday usually presents as fire with unusually good hearing.

Courtship and career on the boundary

In love the boundary blend moves first and feels fast: attraction acted on quickly, but with more listening than Aries alone tends to budget. Partners report someone direct about wants yet oddly gentle in conflict — the spear carried, rarely thrown. At work this date starts things that need sensitivity to survive: new teams, first hires, launches where trust is the product. It outperforms in rooms where pure aggression fails and pure patience stalls.

The shared blind spot

Both signs at this boundary struggle with middles. Pisces drifts past them; Aries sprints past them. So the March 21 pattern, whichever column of the table holds your year, is brilliant openings and vague second acts — relationships, projects, regimens, all superbly begun. The growth is unglamorous: pick one begun thing per season and carry it, visibly, to the boring finish.

If your year shows a time rather than a sign, your birth hour is the whole question. The birth chart calculator resolves the Sun’s exact position for your minute and place — one computed answer, plus the nine other placements the calendar can’t see.

The date, answered

What zodiac sign is March 21?

Pisces or Aries — this date sits on the boundary. In 0 of the years from 1940 to 2030 the whole day belonged to Pisces; in 64 it belonged to Aries; in 27 the Sun crossed over during the day. The year table above gives your answer, and a birth chart settles it to the minute.

What time does the sign change on March 21?

In years when the ingress lands on March 21, it falls between 00:06 and 12:02 universal time. In the other years the whole day is one sign. Convert your birth time to UTC before reading the table.

Which sign should I read?

Check your birth year in the table. If your year is a split year, the deciding fact is your birth time converted to universal time — or skip the table and compute your chart, which reads the Sun's exact degree for your birth moment.

What degree is the Sun on March 21?

Between 0°00′ Aries and 1°23′ Aries at noon universal time, depending on the year — the calendar drifts about a quarter degree per year against the Sun and resets on leap years. Your exact degree needs your birth date, year, and time.

The date gives you the Sun. The rest takes a chart.

Moon, rising, houses, aspects — computed from your exact birth moment, on your device, free.

Get your free birth chart↗