Cancer–Leo cusp: which are you?
Astrology writers call it the Cusp of Oscillation. In the sky there is no overlap: the Sun leaves Cancer and enters Leo at one precise minute, and that minute moves by up to a day depending on the year. Find your birth year below, convert your birth time to UTC, and you're one sign or the other. In 2026 the crossing is on July 22 at 19:13 UTC.
The crossing, every year 1980–2030
Times in UTC.
Before the time shown for your year: Cancer. After it: Leo. Most years the crossing falls on July 22; in 18 of the 51 years it fell on July 23.
The Cusp of Oscillation: Cancer–Leo traits
What cusp lore describes for people born in the days around the crossing. Your Sun is still in one sign; the blend usually comes from Mercury, Venus, the Moon or the rising sign sitting in the other one, which your chart can confirm.
Personality
Cancer is ruled by the Moon and Leo by the Sun, so this boundary literally sits between the two lights. The tradition calls it the Cusp of Oscillation, and people born around it often recognise the swing: private and shy one week, expansive and centre-stage the next. They combine real emotional depth with a flair for expressing it, and they are fiercely loyal to the people they count as family, chosen or not.
In love
In love they are warm, protective and expressive. They want to care for someone and to be admired by them, which is a big ask and a big gift. Loyalty is non-negotiable. They may test a partner's devotion without saying so, and the Leo pride can make it hard to admit hurt. A relationship with them works best when appreciation is said out loud, regularly, and when home is a place that honours both their need to retreat and to host.
At work
Professionally they combine people skills with a need to lead. They make good managers of close teams, hosts, performers with a personal touch, teachers, family-business owners and anyone whose job mixes care with visibility. They work hard for recognition and harder for loyalty. They struggle in places where effort goes unseen, and in cut-throat cultures where the team is disposable.
The challenge
The oscillation is the lesson. Emotional highs and lows can swing their judgement, and Leonine pride can turn a hurt feeling into a point of honour. Taking things personally is the classic trap. A steady routine that includes both solitude and social time helps them keep the swing gentle, and so does learning to ask directly for praise or comfort instead of waiting to be read.
Why the date moves
The Sun takes 365 days, 6 hours and about 9 minutes to return to the same ecliptic degree, so each crossing lands roughly 5 hours 49 minutes later than the year before — until a leap day pulls it back a full day. Over a four-year cycle the crossing drifts about 45 minutes earlier, which is why the Cancer–Leo boundary sits on July 22 or 23 depending on the year rather than on one fixed date. Horoscope columns print a fixed date; the sky doesn't keep one.
Born on one of these days? The day pages carry the same table: July 22, July 23.
The cardinal water sign that protects what it loves and remembers everything.
Full Cancer guide →Common questions
What are the Cancer–Leo cusp dates?
Across 1980–2030 the Sun left Cancer and entered Leo on July 22 (33 of 51 years), July 23 (18 of 51 years). The exact instant is listed for every year in the table above.
Am I Cancer or Leo if I was born on the cusp?
One or the other, never both. Find your birth year in the table, convert your birth time to UTC, and compare: before the crossing you are Cancer, after it Leo. If you don't know your birth time, the free chart calculator computes it from date, time and place and settles it in a minute.
Why is the Cancer–Leo cusp called the Cusp of Oscillation?
The twelve cusp names come from Gary Goldschneider and Joost Elffers' The Secret Language of Birthdays (1994), which treats the week around each crossing as its own period with its own character. The Cusp of Oscillation is the name that book gave to the days where Cancer turns into Leo, and astrology writers have used it ever since.
Is being born on a cusp special?
In the chart your Sun sits at one degree of exactly one sign, so you are never "both". What cusp lore describes is still worth reading: someone born within a few days of the crossing often has Mercury or Venus (which stay close to the Sun) in the neighbouring sign, or the Moon or rising there, and those placements do much of the blending people attribute to the cusp. Your full chart shows which ones you have.