

Born on June 21
- 1940–2030
- whole day Gemini in 11 years · whole day Cancer in 6 · split at the ingress in 74
- In 2026
- Gemini until 08:25 UTC, then Cancer
- Sun degrees
- 29°14′ Gemini – 0°38′ Cancer · noon UTC, 1940–2030
- Decan
- last decan of Gemini or first of Cancer — the ingress decides
- This year
- June 21, 2026: Sun 0°08′ Cancer · Moon in Virgo at noon UTC
The year-by-year table, 1940–2030
Times are universal time — convert your birth time before reading your year.
The June solstice is the moment the Sun leaves Gemini and enters Cancer, and in most years since 1940 that moment falls inside June 21 itself. No date in the month depends on the clock like this one: two babies born the same June 21, morning and night, can carry different Sun signs. A minority of years give the whole day to Gemini, a smaller minority to Cancer — the table above sorts yours, and if it shows a split, the hour is everything.
The hinge temperament
People born at a sign boundary usually describe themselves in both columns, and here the columns genuinely rhyme. The Gemini Sun ends its run distilled: verbal, connective, curious to the last degree. The Cancer Sun opens at full instinct: protective, tuned to rooms, already keeping people. The June 21 blend tends to read as warmth with commentary — someone who notices what you need and can also say it better than you could.
Bright company, deep loyalty
In love, the mix is disarming: the playfulness of late spring, the stickiness of early summer. This birthday banters like air and attaches like water, and partners sometimes take a year to notice how deep the roots went while everyone was laughing. At work, it suits roles where communication carries care — teaching, editing with a mentor’s hand, running the team whose birthdays it knows. Cold brilliance for its own sake leaves it hollow fast.
Say it or store it
The friction: two processing systems, each grabbing the wheel. The Gemini reflex narrates a hurt into a story; the Cancer reflex files it away silently for later. Either way, the person who caused it never hears the plain version. The growth is choosing the third option early — the direct sentence, spoken once, while it is still small enough to say kindly.
For a birthday this close to the line, the honest answer is a computation, not a horoscope column. The birth chart calculator takes your year, minute, and town and returns the side of the solstice you were actually born on.
The date, answered
What zodiac sign is June 21?
Gemini or Cancer — this date sits on the boundary. In 11 of the years from 1940 to 2030 the whole day belonged to Gemini; in 6 it belonged to Cancer; in 74 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 June 21?
In years when the ingress lands on June 21, it falls between 00:56 and 23:56 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 June 21?
Between 29°14′ Gemini and 0°38′ Cancer 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.
Moon, rising, houses, aspects — computed from your exact birth moment, on your device, free.
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