Natal Chart Lab

January zodiac signs

January has two zodiac signs: Capricorn until about January 19 and Aquarius from about January 20. The exact change falls on January 19, 20 or 21 depending on the year.

In 2026, the Sun enters Aquarius on .

That is Jan 19, 8:45 PM EST in New York.

Zodiac sign for every January birthday

BirthdaySun sign
January 1♑︎ Capricorn
January 2♑︎ Capricorn
January 3♑︎ Capricorn
January 4♑︎ Capricorn
January 5♑︎ Capricorn
January 6♑︎ Capricorn
January 7♑︎ Capricorn
January 8♑︎ Capricorn
January 9♑︎ Capricorn
January 10♑︎ Capricorn
January 11♑︎ Capricorn
January 12♑︎ Capricorn
January 13♑︎ Capricorn
January 14♑︎ Capricorn
January 15♑︎ Capricorn
January 16♑︎ Capricorn
January 17♑︎ Capricorn
January 18♑︎ Capricorn
January 19Capricorn or Aquarius depends on year and birth time
January 20Capricorn or Aquarius depends on year and birth time
January 21Capricorn or Aquarius depends on year and birth time
January 22♒︎ Aquarius
January 23♒︎ Aquarius
January 24♒︎ Aquarius
January 25♒︎ Aquarius
January 26♒︎ Aquarius
January 27♒︎ Aquarius
January 28♒︎ Aquarius
January 29♒︎ Aquarius
January 30♒︎ Aquarius
January 31♒︎ Aquarius

Dates are UTC calendar days. A birth late in the evening in the Americas can already be the next UTC date; the Sun sign calculator converts your local birth time.

When the Sun enters Aquarius, 2023–2032

YearSun enters Aquarius (UTC)New York time
2023Jan 20, 3:30 AM EST
2024Jan 20, 9:08 AM EST
2025Jan 19, 3:00 PM EST
2026Jan 19, 8:45 PM EST
2027Jan 20, 2:31 AM EST
2028Jan 20, 8:22 AM EST
2029Jan 19, 2:02 PM EST
2030Jan 19, 7:55 PM EST
2031Jan 20, 1:49 AM EST
2032Jan 20, 7:32 AM EST

All Aquarius season times, 1950–2050

How these dates are calculated

Each tropical sign occupies 30° of ecliptic longitude, starting at the March equinox. We search the Sun’s apparent geocentric longitude with Astronomy Engine, using the same calculation as our Sun sign calculator. Times are rounded to the nearest minute; they are calculated estimates, not second-level guarantees. See our methodology and published JPL comparison.

All dates in these tables use UTC. A local birthday can fall on a different UTC date. For a personal answer near a boundary, enter your birth date, time and place in the calculator. At the transition the new sign begins; a person has one tropical Sun sign.

Tropical signs are equal sectors tied to the seasons, not the unequal astronomical constellations. Precession changes their alignment. These tables do not give IAU constellation crossing dates or sidereal signs.

Frequently asked questions

What zodiac sign is January?

January has two zodiac signs: Capricorn until about January 19 and Aquarius from about January 20. The Sun’s exact entry into Aquarius falls on January 19–21 (UTC) between 1950 and 2050.

What zodiac sign is January 20?

January 20 is usually Aquarius, but in some years the Sun enters Aquarius later that day or the next day. Born on January 19–21? Check your birth time with the Sun sign calculator.

Is January 18 Capricorn or Aquarius?

January 18 is Capricorn in every year from 1950 to 2050; the Sun never enters Aquarius that early.

Why do zodiac date lists disagree for January?

The Sun enters Aquarius at a different time each year, and the calendar date depends on the time zone. Lists that give one fixed date are rounding. A birth time and place settle it.

Zodiac signs in other months

All 12 signs in order

Astrology is a symbolic and cultural tradition. The planetary positions on this site are calculated with astronomical accuracy; the interpretations describe what astrologers associate with them and are not scientifically validated predictions about personality, relationships or the future.