Solar Return Location: Birthplace vs Current City Compared

A solar return occurs at one global UTC instant: the moment the transiting Sun returns to your exact natal ecliptic longitude. Relocating a solar return chart to a different city changes the local clock time, Ascendant, Midheaven and house placements, while every planet’s zodiac longitude and aspect stays identical.

Cast your own birthday chart for your birthplace or current city in the solar return chart calculator.

One 2026 solar return, cast for three cities

Reference natal birth: June 15, 1990, 14:30, Singapore (UTC+08:00) (1990-06-15 06:30 UTC), with natal Sun at 23°55′ Gemini. In 2026, the Sun returns to that exact longitude at 2026-06-14 23:24 UTC. Below we cast the Placidus chart for that identical instant in Singapore, London and New York.

Because the UTC instant (2026-06-14 23:24 UTC) does not change, the local date is June 15 in Singapore and London, but the evening of June 14 in New York. The solar return Ascendant shifts from 28°47′ Gemini in Singapore to 24°27′ Aquarius in London and 11°19′ Sagittarius in New York.

Identical planetary longitudes, different Placidus houses

Every planet’s tropical longitude agrees across all three columns because geocentric planetary positions depend on time, not the observer’s city. Only the horizon and meridian orientation changes, rotating the Sun from the 12th house in Singapore to the 4th house in London and the 7th house in New York.

Why birth-time errors shift a solar return Ascendant rapidly

The Sun moves about 1° per day (roughly 2.5 arcminutes per hour). If your natal birth time is off by one hour, your calculated natal Sun longitude changes by about 2.5 arcminutes, which shifts the solar return instant by about one hour. During that hour, Earth rotates by roughly 15°, moving the solar return Ascendant and Midheaven by about half a sign. Check natal time sensitivity first in our 15-minute birth-time comparison.

Birthplace vs current residence: which convention do astrologers use?

Modern relocation astrologers commonly cast the solar return for where you physically spend the return instant, while some traditional practitioners retain the natal birthplace. Both conventions use the same astronomical return timestamp. Choosing one over the other is an interpretive convention; neither calculation proves that traveling for your birthday alters life events.

Method and limits

We bracket the Sun’s return within three days of the birthday in the target year and bisect delta(natalSunLon, longitude('sun', t)) to one-minute resolution. Angles and Placidus cusps are evaluated at the selected city’s GeoNames coordinates. At high latitudes where Placidus is undefined, the calculator reports a Whole Sign fallback; see why Placidus fails at high latitudes.

Download the research and comparison JSON · Reproduce these tables (TypeScript source). Output is licensed under CC BY 4.0; credit Natal Chart Lab and link to this article.

Prepared with AI assistance and checked against calculation code and saved data. Astronomical calculations and dataset statistics do not establish astrological claims about personality, relationships or future events.