It is increasingly common for one partner to be born in India and the other in the US, UK, or elsewhere, sometimes to Indian parents living abroad. This raises a fair question: does being born on different continents change how matching works?

What changes: the input, not the method

Each chart is computed from that person’s own birth date, time and place, converted to the correct local time zone and coordinates. A birth in Chicago and a birth in Chennai are each computed with their own local sunrise, sidereal time and coordinates, exactly as precisely as a birth in the next city over.

What does not change: the matching rules

Once both charts exist, Ashtakoota guna milan compares them the same way regardless of where either person was born. Nakshatra, rashi and the resulting doshas are the same categories everywhere in the world; the sky does not have different rules by continent.

Where mistakes actually happen

The real risk is not astrological, it is data entry: getting the birth time zone wrong, or converting it incorrectly, shifts the whole chart. Double-check the birth city’s time zone at the exact birth date, since some places have changed time zone rules over the decades.

A worked example: Chicago and Chennai

Say the groom was born in Chicago on 14 August 1993 at 6:45 AM, and the bride was born in Chennai on 2 March 1995 at 11:20 PM. Chicago runs on Central Daylight Time in August, UTC-5, so his birth converts to 11:45 UTC. Chennai runs on IST year-round, UTC+5:30, so her birth converts to 17:50 UTC the previous day. Once both are converted to UTC and recalculated for sidereal positions using each city’s own longitude and latitude, the software has two complete, independent charts. From there, guna milan runs a fixed set of eight comparisons, varna, vashya, tara, yoni, graha maitri, gana, bhakoot, and nasadi, scored out of 36 points. Nothing about the 8,400-mile distance between Chicago and Chennai enters that calculation. A couple born forty minutes apart in the same Chennai hospital and a couple split across two continents go through the identical scoring method.

Time zone traps specific to NRI birth records

A few things trip up cross-continent charts more often than people expect. US hospital birth certificates usually record local time, but a parent filling in an astrology form from memory years later sometimes writes the time in whatever zone they currently live in, not the zone of the birth city. Some Indian cities, and a handful of US counties, changed time zone or DST rules at different points in the twentieth century; a birth before 1955 in parts of India can predate standardized IST. UK birth registrations sometimes list only the registration date, not the exact birth time, so confirm which timestamp is on the document before entering it into a matching tool. None of these are astrology problems, they are records problems, but they produce the same downstream error: a nakshatra or rashi that is technically wrong because the input minute was wrong.

What to have ready before you match

Before running a match between two charts born on different continents, collect four things for each person: full birth date, birth time to the nearest minute if possible, birth city and country, and confirmation of whether that time is local clock time or already converted to IST. If the birth time is uncertain by more than 15 to 20 minutes, say so upfront, since that can shift the nakshatra pada or even the rashi near a boundary, which matters more for bhakoot and nadi dosha than for the coarser koota categories.

Run the match

Use the kundli matching tool with accurate birth details for both people, wherever they were born.

For more on matching and marriage logistics across countries, see the guide for Indians abroad.