Astrology Dates
Last updated: Snapshot included in initial HTML • Data valid through: current zodiac season window
A quick-reference guide to each zodiac season with symbols and date spans.
Zodiac Date Range by Sign
What are Cusps?
A "cusp" refers to the transitional days between two zodiac signs. If you were born on the first or last day of a sign, you might feel a blend of both energies. However, technically, the Sun can only be in one sign at the exact moment of your birth. Calculating your full birth chart with the sun, moon, and rising calculator or birth chart guide will reveal your true, definitive Sun sign.
Tropical vs. Sidereal
Tropical Astrology (common in the West) is based on the seasons and the vernal equinox, keeping the start of Aries aligned with Spring in the Northern Hemisphere.
Sidereal Astrology (used in Vedic astrology) aligns with the actual, current constellations in the sky, factoring in the Earth's shifting axis over millennia. If you want to compare changing sky positions with these date ranges, open the planetary positions calculator.
Cosmic Events Calendar
Retrogrades (ephemeris-synced)
- Mercury: Check current cycle in live ephemeris snapshot.
- Venus: Check current cycle in live ephemeris snapshot.
- Mars: Check current cycle in live ephemeris snapshot.
Eclipse Windows (ephemeris-synced)
- Solar eclipse window: See live ephemeris snapshot for exact date and sign.
- Lunar eclipse window: See live ephemeris snapshot for exact date and sign.