Exact Start and End Dates for Leo
The Sun enters Leo when it reaches a specific celestial longitude, typically around late July each year. The Leo period usually begins on July 23 and ends on August 22, though the precise moment of ingress shifts by hours or a day depending on the year and time zone. The exact start time is calculated using astronomical ephemeris data from sources like the U.S. Naval Observatory and the Swiss Ephemeris, which track the Sun's geocentric position in tropical zodiac coordinates.
Because the Leo ingress moment is tied to the Sun's ecliptic longitude of 120 degrees, the date can occasionally fall on July 22 or August 23 in some years, especially for certain time zones. Astrologers using the tropical zodiac treat the Leo period as a fixed seasonal bracket, while sidereal systems shift the dates by roughly 24 days. For most popular astrology references, Leo season is understood as July 23 to August 22, with the Sun's entry into Leo marking the official start.
Leo in the Context of the Zodiac Calendar
Position Between Cancer and Virgo
Leo is the fifth sign of the zodiac, positioned between Cancer and Virgo in the standard tropical sequence. The Leo period follows Cancer, which ends around July 22, and precedes Virgo, which begins around August 23. This placement places Leo in the heart of summer in the Northern Hemisphere, a season often associated with confidence, visibility, and creative expression in astrological interpretation.
The zodiac calendar used for most Western horoscopes divides the ecliptic into twelve 30-degree segments, with Leo occupying degrees 120 to 150. This framework determines when Leo starts and ends, independent of the physical constellations, which have shifted due to precession of the equinoxes. The fixed date range of July 23 to August 22 is the basis for Leo sun sign columns, compatibility charts, and daily forecasts published by outlets like Forbes and Astro.com.
Leo Dates in Financial and Cultural Cycles
Leo Season and Market Calendar Patterns
In financial contexts, the Leo period overlaps with mid-year earnings seasons and major corporate reporting cycles in the United States. Companies often release second-quarter and mid-year results during the last week of July and the first week of August, placing key data releases squarely within the Leo timeframe. This concentration of earnings and guidance updates can influence sector rotation and sentiment in equity markets.
The Leo period also aligns with peak activity in industries associated with the sign's themes, such as entertainment, luxury goods, and creative sectors. Major product launches and entertainment industry events frequently cluster around late July and August, with firms like Tesla and SpaceX historically timing high-profile announcements to this window. Regulatory filings with the SEC during this period provide transparent data on corporate performance that coincides with the Leo astrological season.