January Zodiac Sign
Revised . First published .
Your January zodiac sign is either Capricorn or Aquarius. Birthdays from January 1 through January 18 always fall in Capricorn, and January 21 through January 31 always fall in Aquarius. For January 19 and January 20, we check the exact year and time you were born.
- ♑ Capricorn
- January 1 through 19
- ♒ Aquarius
- January 20 through 31
- Days on the cusp
- January 19 through 20
January dates for Capricorn and Aquarius
If your birthday falls from January 1 to January 18, your Sun sits in Capricorn. Over those 18 days, the Sun travels from about 10°15′ Capricorn through 29°59′ Capricorn. The part of the sky where the Sun sat at your birth is what your Sun sign names. For these early dates, you don't need a birth time.
The next January sign begins once the Sun reaches 0°00′ Aquarius. Any birthday from January 21 through January 31 places your Sun in Aquarius. The Sun reaches about 11°30′ Aquarius by the last night of the month. Your calendar date alone is enough to confirm your sign for those 11 days. You won't need your birth time or city at all.
When the Sun enters Aquarius year by year
| Year | Sun enters Aquarius |
|---|---|
| 2020 | January 20, 9:54 AM EST |
| 2021 | January 19, 3:40 PM EST |
| 2022 | January 19, 9:38 PM EST |
| 2023 | January 20, 3:29 AM EST |
| 2024 | January 20, 9:07 AM EST |
| 2025 | January 19, 3:00 PM EST |
| 2026 | January 19, 8:44 PM EST |
| 2027 | January 20, 2:30 AM EST |
| 2028 | January 20, 8:21 AM EST |
| 2029 | January 19, 2:01 PM EST |
| 2030 | January 19, 7:54 PM EST |
| 2031 | January 20, 1:48 AM EST |
On January 19 or January 20, does the sign change?
The clock time at which the Sun crosses into Aquarius isn't the same from year to year. Circling the Sun takes Earth about 365 days and 6 hours. Our calendar fits 365 days into 3 years out of 4. Each year, those 6 extra hours delay the changeover. Leap Day on February 29 then moves it back.
That shift in the calendar means you should quickly verify any January 19 or January 20 birth date. The Sun reached 0°00′ Aquarius on January 19 of 2025, at 3:00 in the afternoon (PM Eastern Time). That crossing fell on January 19 of 2026, at 8:45 in the evening (PM Eastern Time). Born before the crossing moment in the year you were born, you're a Capricorn. A birth after that minute makes you an Aquarius.
Traits shared by the 2 signs and how they differ
These 2 January signs look more alike to astrologers than you might expect. Traditional astrology gives Capricorn and Aquarius the same ruler, the planet Saturn. That common ruler leads astrologers to call people under either sign patient, observant and independent. Astrologers often describe January signs as favoring plain facts over large emotional displays and keeping their promises.
Astrologers' grouping of the elements reveals their main differences. Astrologers see Capricorn as an earth sign, holding tested methods, clear structure and steady progress in high regard. They view Aquarius as an air sign centered on new ideas, community and making old systems better. Traditionally Capricorn is seen working within proven rules, while Aquarius is seen testing those rules.
The questions people ask
Can you have 2 January zodiac signs if you're born on the cusp?
Your Sun can only be in 1 zodiac sign when you're born. Even during a changeover day, the Sun sits at Capricorn's very end or Aquarius's start. Even so, Mercury and Venus move near the Sun through the sky. Astrologers say those planets in the neighboring sign can lend you traits belonging to each sign.
Without knowing my birth time, how can I find my sign?
Begin by finding when the Sun changed signs in the year and time zone of your birth. A crossing at 11:15 PM means nearly the whole day went to Capricorn regardless. A parent's rough memory often helps when the switch falls near midday. You can also ask the vital records office in your state for a full birth certificate that shows the recorded minute.
Why do astronomy apps place the Sun in Sagittarius at the start of January?
In Western astrology, the zodiac starts at the March equinox, not with the background constellations. The Sun's yearly path is split into 12 equal sections of 30° each, beginning at 0°00′ Aries when spring starts in March. Instead, stargazing apps chart the uneven star patterns. Earth's axis wobbles slowly across centuries, so those star patterns have shifted about 24° against the seasonal zodiac.