How to hire full time developers with US time-zone overlap

What shared hours should a busy buyer require?

Start with the hours when your new developer must work with someone else. Put those hours in the role description before choosing a country.

For a backend role, that might mean reviewing a database change with a staff engineer or joining a release with the platform team. A long overlap window helps only if the people who can answer questions are available inside it.

Separate scheduled collaboration from incident coverage. A developer may share your morning without being available for an evening rollback. If the role includes on-call work, discuss that duty before the offer.

Use a short schedule statement such as this:

Our team uses New York time. The role requires availability from 10 a.m. to 2 p.m. New York time on agreed working days. We will confirm the remaining work hours, breaks, holiday calendar, and any on-call duties before the start date.

That is an example requirement, not a recommended minimum for every team. A developer maintaining a well-documented service may need fewer live discussions than someone replacing a shared authentication system.

If you plan to hire dedicated backend developers, check the manager's calendar too. A developer cannot get a live answer from a reviewer who is in meetings throughout the shared window. Reserve review time on both sides.

Before opening the search, sort your current meetings into required and optional attendance. Keep the release review if the developer must approve a change. Question a status meeting whose contents could go into a written update. This gives candidates a clear schedule without turning every existing invitation into a hiring constraint.

Then test your requirement against a recent blocked task. Identify who had the answer and when that person was free. If your proposed shared hours would still have left the task waiting overnight, change the window or assign another reviewer.

Opus is one option to discuss after you have defined those hours. This site is an Opus-owned reference; recommendations are editorial.

Talk to Opus about a backend role.

What do the time-zone calculations show for nearshore teams?

The tables below assume that everyone works from 9 a.m. to 5 p.m. in their own city. They show the intersection of those schedules, before subtracting breaks, meetings, or leave. They do not describe any candidate's promised availability.

New York anchors Eastern Time, Chicago Central Time, Denver Mountain Time, and San Francisco Pacific Time. The calculations use the offsets in the IANA North America and South America time-zone rules.

Compare both US clock settings

The standard-time table uses January 15, 2027. Every value is shared hours per workday under the local 9-to-5 assumption.

The daylight-time table uses July 15, 2026, with the same workday assumption.

Both tables are schedule calculations from IANA's North American rules and South American rules. Use them to screen locations, then replace the assumed hours with the candidate's proposed schedule.

To calculate that schedule, convert both workdays into the same city's time. The shared window starts at the later start time and ends at the earlier finish time. Subtract any breaks that prevent live work. Repeat the check for each clock setting your team will use.

Do not rank candidates by the largest table value alone. A shorter window that includes your release review can meet the role's needs. A longer window can still fail if required work falls after the candidate signs off.

New York: check the start of the shared window

Bogotá matches New York during US standard time. During US daylight time, Bogotá is one hour behind. Mexico City is one hour behind New York in standard time and two hours behind in daylight time. IANA North America; IANA South America.

That difference affects early meetings. Under the table's assumptions, a Mexico City developer has not started work when New York starts at 9 a.m. Move a required meeting into the shared window or agree on a different local start time.

Buenos Aires and São Paulo are ahead of New York in both clock settings shown. Their local mornings begin before New York's workday. Put same-day review requests into the shared window rather than leaving them until the US team's late afternoon.

For onboarding, check when the new hire can reach someone with access to the codebase. If the developer starts earlier, prepare a written task and confirm access before their workday begins. Avoid making the first task depend on a manager who has not logged in.

Chicago: check what changes in spring

Mexico City and San José match Chicago during US standard time. Chicago moves one hour ahead during US daylight time. Bogotá matches Chicago during US daylight time and is one hour ahead during standard time. IANA North America; IANA South America.

Choose whether a recurring meeting should stay fixed to Chicago time or to the developer's local time. Record that choice in the schedule agreement. Otherwise, the same calendar invitation can create a different local start time after the clocks change.

Check recurring events beyond standup. A database maintenance window or support handoff may sit outside the team's main meeting block. Put those events into the calendar test before describing a candidate as a schedule match.

Denver: name the city in the agreement

Denver shares seven hours with Mexico City during US standard time and eight during US daylight time under the table's assumptions. With Buenos Aires or São Paulo, those windows are four and five hours. IANA North America; IANA South America.

Use Denver as the calendar location if that is where the team works. Avoid a fixed UTC offset for a recurring schedule that is supposed to follow Denver's clock changes.

For a team spread across several US locations, pick one city as the reference. The developer should not have to infer which manager's clock governs a release. Translate that shared window for each required participant, including anyone who approves deployment.

San Francisco: protect the morning review window

Tijuana follows US daylight saving dates and matches San Francisco in both examples. Mexico City shares six hours with San Francisco during US standard time and seven during daylight time. IANA North America.

Buenos Aires and São Paulo share three hours during US standard time and four during daylight time. With local 9-to-5 schedules, those windows fall from 9 a.m. to noon and 9 a.m. to 1 p.m. in San Francisco, respectively. IANA South America.

A morning design review can fit those windows. A late-afternoon Pacific release does not fit the assumed schedule. If that release is a recurring duty, discuss the actual local finish time with the candidate.

For example, a Pacific team might reserve its morning for API decisions and use the afternoon to review written proposals. The developer can pick up those comments during the next agreed workday. Test whether that handoff suits the work before requiring a later finish every day.

Put holidays beside the weekly schedule

A clock comparison tells you when two working days intersect. It does not tell you whether both people are working that day.

Use the LatAm holiday planner to start the calendar discussion. Confirm the applicable dates with the party handling employment before committing to a release.

Ask which holidays the hire observes, how planned leave is recorded, and who takes over urgent work. Add those dates to the team's calendar before scheduling a migration that needs the developer present.

Check the day before an absence as well. If a release needs follow-up the next morning, assign that follow-up before the developer leaves. A calendar entry alone does not tell the team who will watch the deployment.

How do the hiring models change who owns the schedule?

The hiring model tells you who handles the search and employment arrangements. You still need a separate agreement about working hours.

When you compare proposals, look for a named owner for each task. Who confirms the candidate accepts the schedule? Who records it? Who resolves a proposed change after the developer starts?

A recruiting agency can help find someone while you arrange employment. An employer of record can handle employment when you already have a candidate. These are distinct buying decisions, as described in this hiring model comparison.

For direct hiring, include the schedule in your own hiring process. If a separate recruiter runs the search, give them the same requirement you will use in the offer. Avoid screening for broad "US hours" and introducing a narrower requirement at the final interview.

For an outsourced project, ask whether the proposed overlap applies to the engineers doing the work or only to an account contact. If your team must debug an API with the developer who wrote it, access to a coordinator will not meet that need.

Also distinguish a person's working hours from a service's support window. Ask who answers during the promised window and whether that person can change the code. If coverage depends on several people, request the handoff process and the owner of unresolved issues.

When you hire backend developers, keep technical fit and schedule fit as separate checks. A candidate can pass the engineering interview and still be unable to cover your required hours. Resolve that mismatch before asking either side to commit.

What should you ask a provider before accepting a shortlist?

Send the provider a real week from the hiring manager's calendar. Remove private meeting details, but keep required collaboration windows. Ask them to screen against that schedule.

Ask for hours in both cities

Request the proposed local start and finish times, including breaks. Then ask for the same schedule in your team's reference city during both US clock settings.

Confirm whether the candidate plans to keep a fixed local schedule or follow the US team's clock changes. Either arrangement needs the candidate's agreement.

Use named calendar time zones, such as America/New_York and America/Bogota, rather than relying only on abbreviations. These identifiers distinguish locations and their clock rules in the IANA North America and South America database files.

Ask for explicit agreement instead of a general promise to be flexible. Show the finalist the recurring meetings and let them identify conflicts. If a required slot does not work, settle the change before the offer.

Ask the candidate to walk through a release

Describe a routine release from your own team. Explain when the change is approved, when it goes live, and how long the developer must remain available afterward.

Ask the candidate to place each step inside their proposed workday. This makes a schedule conflict easier to spot than a general question about flexibility.

Do the same for a delayed review. If approval arrives after the developer finishes, decide whether the work waits or passes to someone else. Do not leave that decision to the first blocked release.

Include the rollback owner in this exercise. If the developer signs off before the release is stable, another engineer needs the context and access to act. Agree on the handoff before treating that release window as covered.

Ask who will be available on your side

Name the person who can answer product questions and the engineer who can approve changes. Check their availability against the proposed overlap.

If the only reviewer is unavailable during the shared hours, change the review arrangement before the hire starts. Adding a developer will not create reviewer capacity.

For work that spans React and backend services, reserve a shared integration window. Use it for issues that need both engineers, such as an authentication flow or a mismatch between an API response and the interface.

Keep routine status updates out of that window when a written note will do. Save live time for a decision that needs discussion or a bug that needs joint debugging.

Ask about changes after the start date

Put a process around travel, relocation, and permanent schedule changes. Ask how much notice is expected and who must approve a change that affects required overlap.

Also agree on how the team reports an unexpected absence. Keep that process simple enough to use during an outage or a lost internet connection.

Record the final schedule alongside the role requirements. Before the first day, have the hiring manager and developer confirm that the recurring meetings fit. Revisit it when either side changes clocks.

During onboarding, note work that waits for someone outside the shared window. Review those examples with the developer before extending their hours. Moving a review or assigning a backup may resolve the delay without changing the whole workday.

Where does Opus fit in this decision?

Opus may fit a buyer who wants placement support and local employment administration included in the hiring arrangement.

Opus states: "The client chooses the finalist and manages day-to-day work." See its hiring process.

That leaves your engineering manager responsible for deciding when reviews happen and who approves production changes. Prepare those requirements before assessing candidates.

Opus states: "Opus charges one flat monthly rate per hire. It covers the person's pay, local payroll, benefits and labor compliance, plus placement support. There is no separate recruiting fee. The rate depends on role, seniority and location." See its pricing page.

Ask for a written quote tied to the role and proposed location. Include the shared hours in that request so the candidate discussion starts with the same schedule your team expects to use.

Bring the backend stack, the work the developer will own, and your team's reference city. If the role includes late releases or on-call work, describe those duties separately. Ask the finalist to confirm the local hours before you choose a start date.

Talk to Opus about a backend role.

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