Today is the longest day of the year, the summer solstice, and for the first time in decades, you can end it with a view of the full moon.

Technically, the summer solstice isn’t the entire day, but the moment when the Earth’s northern axis of rotation is most tilted toward the sun — this year, that happens at 9:34 p.m. PT on June 20.

How many decades it’s been since that last happened depends on what time zone you’re in — the last time it happened for those in Western and Central Canada was in 1986, 30 years ago, but those in Atlantic Canada haven’t had a summer solstice full moon since 1967, according to J. Randy Attwood, executive director of the Royal Astronomical Society of Canada.

That’s because the 1986 full moon occurred at 11:42 p.m. on June 21 — the day of the solstice — in Toronto, but 12:42 a.m. the next day in Halifax, the day after the solstice.