Western astrology starts the zodiac at the March equinox, Vedic astrology at the stars, and the two sit about 24° apart. So the Sun reaches Leo about 24 days later in the Vedic zodiac, and most people with a Western Leo Sun have a Vedic Cancer Sun.
When the Sun is in Leo
Western Leo
23 Jul – 22 Aug
Vedic Leo
16 Aug – 15 Sep
Western Leo: your Vedic Sun
Born 23 Jul – 15 Aug
Vedic Sun in Cancer
Born 16 Aug – 22 Aug
Leo in both zodiacs
Dates for someone born around 1990, in UTC. They move a day either way with the birth year and time; a chart in Unseen Signs is exact to the minute.
The nakshatras of Vedic Leo
Vedic astrology also divides the sky into 27 nakshatras, the lunar mansions. Vedic Leo holds:
The same 24° shift applies to every planet and to the rising sign, so most charts change in several places at once. Your birth date, time and place show your Sun, Moon and rising sign in both zodiacs.