June has two zodiac signs: Gemini until 20 June, and Cancer from 21 June.

| Born | Sign | Constellation · brightest star |
|---|---|---|
| 1–20 June | Gemini | Gemini · Pollux |
| 21–30 June | Cancer | Cancer · Tarf |
These are the usual calendar dates. The moment the Sun moves from Gemini into Cancer shifts slightly between years, so a birthday on the boundary can fall either side. A birth chart calculated for the exact minute and place shows where the Sun stood.
Gemini covers 21 May – 20 June. Its constellation is Gemini, and its brightest star is Pollux.
From the UK, Gemini is best placed in the evening sky from January to March.
Cancer covers 21 June – 22 July. Its constellation is Cancer, and its brightest star is Tarf.
From the UK, Cancer is best placed in the evening sky from February to April.
Each person is drawn as the constellation of their sign, from the familiar calendar dates. Everyone born 1–20 June appears as Gemini, with Pollux named; everyone born 21–30 June as Cancer, with Tarf named. Two to six people — first names and birthdays only.
June has two zodiac signs: Gemini until 20 June and Cancer from 21 June.
In the usual calendar dates, 21 June is the first day of Cancer. The exact moment the Sun moves into the next sign shifts slightly from year to year, so a birth on 20 or 21 June can fall either side.
The constellation Cancer, whose brightest star is Tarf.
January February March April May June July August September October November December