Nearshore vs offshore: decide on the hours the work needs, not the map

The map is the wrong place to start

Nearshore development means a supplier in a nearby country with a similar time zone, such as Latin America for the US or Poland and Romania for the UK. Offshore means a supplier further away, usually several time zones apart, such as India for both. The difference that matters to delivery is not distance. It is how many working hours your team and the supplier’s share, and how much of your work needs those shared hours.

This article is for the CTO or engineering lead choosing where an extended team or a dedicated team will sit. It works out the overlap for the common pairings, sets out what the research found about distance and speed, and ends with six questions that settle the choice for your work rather than for an average company.

We read the pages that rank for this question in October 2026. Nearly all of them are written by a supplier selling one of the two models, most often a Latin American nearshore firm, and they argue from hourly rates and savings percentages that none of them sources. The overlap figures they quote vary from page to page. None of them cites research.

A disclosure, because it matters more here than usual. Our team is in Ahmedabad, India, and we provide dedicated teams and staff augmentation to companies in other countries. So we have an interest in this comparison. We have tried to write it so that a reader for whom nearshore is the right answer finds that out here. The overlap figures are computed from the standard time zone database and the research is cited at source.

The overlap, worked out

The figures below assume a standard 9 am to 6 pm working day on both sides, and take the clock changes into account. India, Mexico City, Bogotá, São Paulo and Buenos Aires do not change their clocks; the US, the UK and the EU do, which is why the overlap moves between winter and summer.

Three things follow. For a US buyer the difference is large and real: Latin America shares most of the working day, and India on standard hours shares none of it. For a UK or European buyer the difference is smaller than the word offshore suggests: India shares half a working day with Central Europe in summer, before anyone changes their hours. And the US West Coast is the hardest pairing for every supplier region except Mexico and Colombia.

Overlap is also a contract term

The table assumes both sides keep standard hours, and suppliers far from their clients often do not. A team in India working 1 pm to 10 pm shares 2.5 hours with the US East Coast in winter and 3.5 hours in summer, enough for a daily standup and a review. It still shares almost nothing with the West Coast. So the useful question to a supplier is not where it is, but which hours its engineers will work on your account, written into the contract, and whether those are the hours they actually keep.

One more detail catches teams out. The US moves its clocks on the second Sunday of March, and the UK and EU on the last Sunday. For two or three weeks each spring and autumn the offsets shift, and meetings booked across both regions move by an hour.

What the research found about distance

Distributed software development has been studied for more than twenty years, and the findings are more useful than the vendor pages suggest, because they say why distance costs time.

• In a study at a large telecoms company, Herbsleb and Mockus found that work items spread across sites took about two and a half times as long to complete as similar items done in one place. The cause they identified was not the distance itself: the number of people involved was strongly related to how long the work took, and work across sites involved more people (IEEE Transactions on Software Engineering, 2003).
• Carmel and Agarwal set out three tactics for reducing the cost of distance: reduce the need for intensive collaboration across sites, reduce cultural distance, and reduce time zone distance. They noted that working within time zone bands makes live communication easier (IEEE Software, 2001).
• A laboratory experiment by Nan, Espinosa and Carmel found that time separation reduced accuracy. Speed followed a curve: a small separation slowed work down, while a large one let work pass between sites and sped it up again (ICIS, 2009). This is the case for follow-the-sun working, and its limit.
• A study of the Brazilian IT industry by Prikladnicki and Carmel found some support for the benefits of time zone proximity, and that the live voice coordination which overlap allows helps with coordination and builds working relationships (ICSE, 2013). This is the fair case for nearshore.

Read together, the research points at how the work is divided. When one decision needs people on both sides, every missing hour of overlap delays it. When one team owns a module or product end to end, with its own lead and its own reviews, far fewer decisions cross the boundary, and less overlap is needed. The first is a job for nearshore. The second can work well from either.

Where each model is the better choice

Two things the table leaves out on purpose. Talent and retention vary far more between suppliers than between regions, so they are questions for each supplier, not each country. And cost is not in it, because the cost that matters is the cost of the work delivered, which depends on everything above.

Data and contracts: the checks that differ by country

If your supplier will handle personal data of people in the EU, the country matters legally as well as practically. Under the GDPR, data can flow to a country with an adequacy decision from the European Commission without further safeguards. To a country without one, the transfer needs appropriate safeguards, usually the Commission’s standard contractual clauses, which were modernised in June 2021.

• The Commission’s adequacy list includes Argentina, Uruguay, the UK, Switzerland, Japan, Korea and, since January 2026, Brazil. It covers the US only for organisations certified under the EU-US Data Privacy Framework.
• India, Mexico and Colombia are not on the list, so transfers to suppliers there rely on standard contractual clauses or another safeguard.
• India’s Digital Personal Data Protection Act, 2023 largely does not apply to an Indian company processing the data of people outside India under a contract with a foreign client, though the duty to protect that data with reasonable security safeguards still applies. Its rules were notified in November 2025 with an eighteen-month phase-in.

Whichever region you choose, the contract decides more than the country does: who owns the code and the intellectual property, which law governs the agreement, and what happens to the work and the people if you end it. Those are questions for your own legal advisers, and they are the same questions for a nearshore and an offshore supplier.

Six questions that settle nearshore or offshore

Answer these about your own work before comparing suppliers. They decide how much overlap you need, and the overlap decides the region.

1. 01

   How many live decisions does the work need each day?

   A product still being shaped needs many. A specified module with a clear owner needs few. The more it needs, the more overlap matters.

2. 02

   Can one team own a whole piece of the work?

   A module, a product or a service with its own lead and reviews. Ownership reduces the hand-offs that, in the research, cost the most time.

3. 03

   Which hours will the supplier’s engineers work on your account?

   Ask for them in writing, then work out the overlap with your own team’s day, in summer and in winter.

4. 04

   Where is your own team?

   A team split between the US East and West Coasts, or between the US and Europe, changes which supplier region gives the most shared hours.

5. 05

   Will the supplier handle personal data, and whose?

   For EU personal data, check whether the supplier’s country has an adequacy decision, and if not, how the transfer will be safeguarded.

6. 06

   How often must people be in the same room?

   Workshops, launches or regulated on-site work. If the answer is often, distance becomes a cost on every visit.

Check the shape of your work

A quick way to see which way your work leans. The more lines you tick, the less a large time zone gap will cost you.