Capricorn Dates: Exact Date Range & Boundary Days by Year
Capricorn is the one zodiac window that crosses New Year's: its December 21/22 opening and January 19/20 closing both depend on the year, hour, and timezone.
Its January half belongs to a season that began the previous December, so I use year-specific switch times rather than a bare date range.
You can compare the full wheel on the 12 zodiac signs.
Capricorn at a Glance: Dates, Element, Ruler, and Symbol
Capricorn dates are typically December 22 - January 19, but that familiar window is only a convention. The Sun will enter Capricorn on December 21, 2026 at 3:50 PM Eastern (20:50 UTC), and that season runs until the Sun enters Aquarius on January 20, 2027 at 2:30 AM Eastern. That is one season crossing two calendar years.
- Element: Earth
- Modality: Cardinal
- Polarity: Receptive; classic terms include feminine, negative, and yin
- Ruler: Saturn in both modern and classical schemes
- Symbol and glyph: The Sea-Goat, a goat with a fish tail, ♑
- Order: 10th sign
- Opposite sign: Cancer
- Ecliptic span: 270°-300° of tropical longitude
Was I a Capricorn in My Birth Year?
Use the year-aware checker with your birth month, day, and year from 1900 through 2030. Birth time is optional, but it is needed to close a verdict when the birthday falls on a switch date.
Times are referenced to Eastern, with UTC shown alongside.
The result gives your verdict and the two relevant switch moments: the December solstice when Capricorn begins and the January ingress when Aquarius begins. Each result includes its year, timezone, and source line.
If you omit the time on a boundary date, the hour stays open. The checker will show the switch moment rather than calling one result more likely.
Capricorn Boundary Dates by Year: December 21-22 and January 19-20
Capricorn can begin on December 21 or 22 depending on timezone conventions, while its January ending can fall on January 19 or 20. This Eastern-time table is the same year-indexed fact base used by the checker and gives more useful answers than a static list.
| Year | December switch - Capricorn begins (Eastern) | January switch - Capricorn ends, Aquarius begins (Eastern) | Status |
|---|---|---|---|
| 2016 | Dec. 21, 5:44 AM | Jan. 20, 10:27 AM | Verified |
| 2017 | Dec. 21, 11:28 AM | Jan. 19, 4:24 PM | Verified |
| 2018 | Dec. 21, 5:23 PM | Jan. 19, 10:09 PM | Verified |
| 2019 | Dec. 21, 11:19 PM | Jan. 20, 3:59 AM | Verified |
| 2020 | Dec. 21, 5:02 AM | Jan. 20, 9:55 AM | Verified |
| 2021 | Pending annual verification | Jan. 19, 3:40 PM | December time pending |
| 2022 | Dec. 21, verified date and time | Jan. 20, pending annual verification | January time pending |
| 2023 | Dec. 21, 10:27 PM | Jan. 20, 3:29 AM | Verified |
| 2024 | Dec. 21, 4:20 AM | Jan. 20, 9:07 AM | Verified |
| 2025 | Dec. 21, 10:03 AM | Jan. 19, 3:00 PM | Verified |
| 2026 | Dec. 21, 3:50 PM | Jan. 19, 8:45 PM | Verified |
| 2027 | Pending annual verification | Jan. 20, 2:30 AM | December time pending |
| 2028 | Pending annual verification | Pending annual verification | Both edges pending |
| 2029 | Dec. 21, 9:14 AM | Jan. 19, 2:01 PM | Verified |
| 2030 | Dec. 21, 3:09 PM | Jan. 19, 7:54 PM | Verified |
Each row shows two switches occurring in that calendar year: the January moment comes first, followed by the December moment about 11 months later. They belong to different Capricorn seasons. Times come from Cafe Astrology's Eastern tables, cross-checked where available against Astro-Seek UTC data and USNO-derived solstice anchors.
Pending cells remain open rather than receiving guessed minutes.
For the other signs and their usual windows, return to the 12 zodiac signs. If your birthday sits close to either edge, see cusp dates explained.
Worked Boundary Verdicts
| Birth details | Switch comparison and verdict |
|---|---|
| December 21, 2026 at 5:30 PM Eastern | The Sun enters Capricorn on December 21, 2026 at 3:50 PM Eastern, according to the USNO-derived solstice anchor cross-checked against Astro-Seek. This birth is after the switch, so the verdict is Capricorn. It is a case a static "starts December 22" table gets wrong. Add your birth time in the checker and the verdict closes. |
| January 20, 2027 at 1:00 AM Eastern | The Sun enters Aquarius on January 20, 2027 at 2:30 AM Eastern, according to the Cafe Astrology 2027 cusp table. This birth is before the switch, so the verdict is still Capricorn. Add your birth time in the checker and the verdict closes. |
| January 19, 2026 at 9:00 PM Eastern | The Sun entered Aquarius on January 19, 2026 at 8:45 PM Eastern, according to Cafe Astrology and the matched 2026 calendars. This birth is after the switch, so the verdict is Aquarius. Add your birth time in the checker and the verdict closes. |
The December 21-22 Boundary: Sagittarius or Capricorn
In Eastern time, the December switch falls on December 21 in every covered year from 2016 through 2030. Verified times range from about 3:20 AM to 11:19 PM, which means December 21 splits by hour while December 22 is Capricorn all day in North America.
For the upcoming season, the Sun enters Capricorn on December 21, 2026 at 3:50 PM Eastern (20:50 UTC), based on the USNO-derived solstice anchor cross-checked against Astro-Seek. Someone born that afternoon before 3:50 PM Eastern is still Sagittarius; someone born afterward is Capricorn.
Static tables often print December 22 because the date can already be December 22 in UTC while it is still the evening of December 21 in Eastern time. In 2019, 2023, and 2027, the UTC calendar shows December 22. The provisional 2027 anchor illustrates the conversion: December 22 at 02:43 UTC corresponds to December 21 at about 9:43 PM Eastern, though that cell awaits annual verification.
For a verdict from the other side of this boundary, check Sagittarius dates and the Sagittarius side of that line.
The January 19-20 Boundary: Capricorn or Aquarius
Three consecutive years show why "Capricorn ends January 19" is not enough. The Sun entered Aquarius on January 19, 2025 at 3:00 PM Eastern and on January 19, 2026 at 8:45 PM Eastern, according to Cafe Astrology and the matched calendar sources. It enters Aquarius on January 20, 2027 at 2:30 AM Eastern, according to the Cafe Astrology 2027 row.
In 2025 and 2026, January 19 was split by hour and January 20 was Aquarius all day. In 2027, Capricorn continues past midnight into January 20. A person born at 1:00 AM Eastern that day is still Capricorn, while a person born at 3:00 AM is Aquarius.
Across the covered verified rows, Aquarius begins January 19 in 2017, 2018, 2021, 2025, 2026, 2029, and 2030. It begins January 20 in 2016, 2019, 2020, 2023, 2024, and 2027. The 2022 minutes and the 2028 date and time remain pending.
See Aquarius dates for the Aquarius side of that line.
One Season, Two Calendar Years
A January 5 Capricorn birthday belongs to a season that opened in the previous calendar year. That sounds obvious once written down, but I once assumed January meant a fresh sign-year too. Now the December-of-last-year lookup is the line of arithmetic I triple-check.
| Step in the 2026-27 season | Moment and meaning |
|---|---|
| Capricorn begins | The Sun enters Capricorn on December 21, 2026 at 3:50 PM Eastern, based on the USNO-derived solstice anchor and Astro-Seek cross-check. |
| Capricorn ends | The Sun enters Aquarius on January 20, 2027 at 2:30 AM Eastern, according to the Cafe Astrology 2027 cusp table. |
This one season contains an evening solstice opening and a January ending after midnight. A January 5, 2027 birthday must be paired with December 2026, not December 2027. Likewise, a January 5, 2026 birthday sits in the season that opened on December 21, 2025 at 10:03 AM Eastern, according to the verified solstice row.
A checker that compares January 2027 with the December 2027 solstice is off by a full season.
Why the Capricorn Dates Shift a Little Every Year
A tropical year lasts about 365.2422 days, so a boundary tends to move roughly 6 hours later each year. Leap day then pulls it about 18 hours earlier. The December column shows the rhythm: 5:44 AM in 2016, 11:28 AM in 2017, 5:23 PM in 2018, 11:19 PM in 2019, then back to 5:02 AM in 2020.
The mechanics come from timeanddate.com's tropical-year and equinox reference; the 12 zodiac signs explains why sign dates shift.
Earth, Cardinal, Saturn: What Makes Capricorn Capricorn
Cardinal Earth in Plain English
Earth is associated in current US astrology references with practicality and groundedness. Cardinal means the sign opens a season: Capricorn initiates winter at the December solstice, just as Aries opens spring, Cancer opens summer, and Libra opens fall.
Fixed signs sustain a season, while mutable signs close one. Those are modalities, not elements, so "cardinal earth" combines two separate categories. Capricorn's polarity is receptive.
Older references may instead use feminine, negative, or yin, while newer sources increasingly prefer active/receptive or diurnal/nocturnal language.
For how these categories fit together, start with zodiac basics.
Saturn in Both Ruler Traditions
Modern and classical ruler lists both assign Saturn to Capricorn. That agreement is worth stating because the two systems differ for Scorpio, Aquarius, and Pisces.
In traditional astrology language, Saturn is associated with structure, limits, and time. That is a symbolic association, not a scientific mechanism or prediction. References that lead with the modern ruler and put the classical ruler in brackets simply name Saturn twice for Capricorn.
The Sea-Goat, the Glyph, and the 270-300° Stretch
Capricorn's traditional image is the Sea-Goat, a goat with a fish tail, represented by the glyph ♑. I read it as an image rather than a hidden code: the sure-footed climb sits beside an element that does not belong on a mountain.
The sign covers 270°-300° of tropical ecliptic longitude, counting from 0° Aries at the March equinox. The 270° point is the December solstice, which is why the start of Capricorn and the opening of winter share an astronomical anchor.
Capricorn is opposite Cancer on the zodiac wheel. It is a solstice-against-solstice pairing, winter against summer; Cancer dates shows the other end of that axis.
Traditional Capricorn Traits - Strengths and Shadow Sides
Capricorn is traditionally described as ambitious, disciplined, responsible, patient, and reserved.
In the tradition, the shadow side uses the same climbing vocabulary: the summit never feels finished, work crowds out rest, feelings stay guarded, and standards become stern toward oneself or other people.
These are traditional symbolic descriptions for entertainment and self-reflection, not science; the Sun sign is one part of a much larger chart.
I don't read daily horoscopes - I like the zodiac as a mirror, not a map. The "ambitious workaholic" stereotype is useful to me only when it prompts a look at my own over-scheduling (and not when it becomes a box for somebody else). A sign label cannot establish someone's character, ability, or emotional life.
Capricorn Compatibility: Traditional Associations, Honestly Hedged
The most common compatibility convention pairs earth with water and fire with air. Under that convention, Capricorn associations often lean toward Taurus and Virgo, along with Cancer, Scorpio, and Pisces. Cancer receives special attention as Capricorn's complementary opposite on the same axis.
Associations differ by source; there are no guarantees, and this shorthand cannot judge a real relationship. Synastry is not decided by Sun signs alone.
Read the underlying convention in Capricorn compatibility, or compare two signs with the compatibility tool.
Capricorn's Calendar: Late December to Mid-January
December is a two-sign month: Sagittarius comes first, then Capricorn from the solstice. January also contains two signs, with Capricorn lasting until the January 19/20 switch and Aquarius following. The month-by-month context belongs with the 12 zodiac signs, not another fixed-date table here.
Capricorn FAQ
Is January 20 Capricorn or Aquarius?
Your birth year decides, and in a split year the hour decides too.
The Sun entered Aquarius on January 19, 2025 at 3:00 PM Eastern and January 19, 2026 at 8:45 PM Eastern, so January 20 was Aquarius all day in those years; it enters Aquarius on January 20, 2027 at 2:30 AM Eastern, making an earlier birth that night Capricorn.
Enter the year and time in the checker for the closed verdict.
Is December 22 Capricorn or Sagittarius?
December 22 is Capricorn in every covered Eastern-time year from 2016 through 2030.
The switch occurs on December 21 between roughly 3:20 AM and 11:19 PM Eastern, so December 21 splits by hour; static tables often show December 22 because some evening Eastern moments fall on December 22 in UTC.
Why does Capricorn span two calendar years?
Capricorn runs from the December solstice until the Aquarius ingress roughly 30 days later, which lands in the next January. A January Capricorn's season therefore began in the previous December, as the 2026-27 season strip shows.
What does the Sea-Goat symbolize?
The Sea-Goat is the tradition's Capricorn image: a goat with a fish tail, shown by the glyph ♑. Traditional readings connect its climbing form with ambition, discipline, and patience, but the image does not prove personality traits.
Am I really two signs if I was born on the Capricorn cusp?
No. Popular cusp ranges often circulate as December 18-24 and January 16-23, but the Sun occupies one sign at any instant. Your birth year and, on a boundary day, your birth hour decide the result; use the checker rather than treating the range as a hybrid identity.
Are Capricorn traits scientific?
No. They are traditional symbolic descriptions for entertainment and self-reflection, and the Sun sign is only one part of a larger chart. They should not be used to judge people; read what astrology can and can't tell you for the evidence boundary.
Does the birthday checker store my birth date?
No. Everything runs locally in your browser, and your birth data is never stored or sent. The checker uses a fixed year-indexed table rather than contacting an external service.
Sources and What This Page Is (and Isn't)
This page treats Western tropical astrology as entertainment and a prompt for self-reflection, not science or a source of predictions. Every displayed switch time includes a year, timezone, and named authority; disagreements and pending rows stay visible. Dana Whitmore is an honest pen name and editorial voice, not a credentialed astrologer, and no certifications are claimed.
Pending cells are checked during the annual factual refresh.
Check your own birth year in the checker above, especially if your birthday falls on December 21, December 22, January 19, or January 20. Then see where every sign sits in one table on the 12 zodiac signs.
Sources
- Cafe Astrology cusp tables, Eastern-time Sun-sign boundaries for 2016-2030, accessed August 14, 2026.
- Astro-Seek 2026 astrology calendar, UTC ingress cross-checks, accessed August 14, 2026.
- Equinox and solstice table, transcribed from the Astronomical Almanac and USNO for December-solstice anchors.
- Royal Observatory of Belgium 2025 Sun-in-zodiac table, observatory cross-check of 2025 portal data.
- timeanddate.com equinox reference, tropical-year length and annual date-drift mechanics.
- The Old Farmer's Almanac zodiac reference, current traits and compatibility framing.
Traditional symbolic descriptions are for entertainment and self-reflection, not science; the Sun sign is one part of a chart, and this page does not provide health, financial, relationship, or event predictions.