When is Gemini season? Exact dates 2026–2028
In 2026 the Sun enters Gemini on May 21, 2026 at 00:37 and moves into Cancer on June 21, 2026 at 08:25 (UTC). In 2027 the dates are May 21, 2027 at 06:17 to June 21, 2027 at 14:10, and in 2028 May 20, 2028 at 12:09 to June 20, 2028 at 20:01. Because the calendar year and the tropical year differ by a few hours, these moments drift from year to year — the reason horoscope columns quote slightly different dates.
Gemini at a glance
Gemini is a air sign of mutable modality and masculine (yang) polarity, ruled by Mercury. Its opposite sign is Sagittarius; its neighbours in the zodiac are Taurus and Cancer.
How to use
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Enter your date of birth. The result appears immediately.
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If you know it, add your time of birth and the time zone of the place you were born.
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Read your sign with its element, modality, ruling planet and the exact dates the Sun spent in it that year.
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Scroll down for the dates of all twelve signs in your birth year.
Why the dates in horoscopes don’t always agree
Your Sun sign is simply the 30° section of the zodiac the Sun occupied when you were born. The Sun enters each sign at a precise moment, and that moment moves by several hours from one year to the next because the calendar year has 365 or 366 days while the tropical year is about 365.24 days. Fixed tables such as “Aries: March 21 – April 19” are averages; this calculator finds the real ingress for your own birth year.
Born on a cusp?
If you were born on the day the Sun changed signs, the answer depends on the hour. Without a birth time the tool calculates for noon and tells you that both signs are possible; with a time and time zone it gives a definite answer and shows how many hours separated your birth from the change. Astrologically there is no blend of two signs: the Sun is always in exactly one of them.
Tropical zodiac, real ephemeris
Positions come from a modern astronomical ephemeris and use the tropical zodiac of Western astrology, which starts at the March equinox. Vedic astrology uses the sidereal zodiac, which today is shifted by about 24°, so a Vedic Sun sign is often the previous sign.
What your Sun sign describes
In astrology the Sun sign is associated with core identity, self-expression and what a person wants to shine at. The element, modality and ruling planet shown with it are the traditional building blocks astrologers use to describe a sign. Interpretations are offered for entertainment and self-reflection.
Frequently asked questions
What is my zodiac sign if I was born on March 20 or 21?
It depends on the year and the time. The March equinox, when the Sun enters Aries, falls on March 19, 20 or 21 depending on the year and time zone. Enter your full birth date and time to get the exact answer.
Do I need my birth time?
Only if you were born close to a sign change. For most birthdays the date alone is enough; the calculator tells you when a time would make a difference.
Why does my sign differ from another website?
Many sites use fixed date ranges that ignore the year. This tool calculates the Sun’s actual position for your birth moment, so cusp birthdays can come out differently — and correctly.
Is there a 13th sign, Ophiuchus?
The Sun passes through the constellation Ophiuchus, but Western astrology uses twelve equal 30° signs measured from the equinox, not the constellations. Ophiuchus is therefore not part of the zodiac used here.