The 45-minute interview structure — opening (5 min), core questions (30–40 min), candidate questions & close (5–10 min)
The 45-Minute Interview Structure
A focused interview needs a clear shape. Learn the proven three-phase structure — a 5-minute opening, 30–40 minutes of core questions, and a 5–10 minute candidate questions and close — and how to manage each phase well.
Introduction
Once you accept that an interview is time-boxed, the next question is: how should those minutes be spent? Without a plan, interviews drift — too long on introductions, not enough time for real questions, and a rushed, awkward ending. A clear structure prevents all of this.
The most reliable structure for a 45-minute interview has three phases: a short opening (about 5 minutes), a substantial block of core questions (30–40 minutes), and a candidate questions and close (5–10 minutes). This lesson explains what happens in each phase and how to manage the timing.
Learning Objectives
- Describe the three phases of a 45-minute interview.
- Explain the purpose and timing of each phase.
- Run an effective opening that sets the candidate at ease.
- Manage the core question block within its time budget.
- Close the interview professionally, leaving time for candidate questions.
Why Structure Matters
Structure protects your most valuable phase — the core questions. When the opening runs long or the close is forgotten, it is always the core questions that get squeezed, and that is exactly where your evidence comes from.
A clear structure also creates a better candidate experience. The candidate knows what to expect, feels settled, and has a fair chance to perform and to ask their own questions.
The Three Phases at a Glance
| Phase | Time | Purpose |
|---|---|---|
| Opening | ~5 min | Welcome, set expectations, and put the candidate at ease. |
| Core Questions | 30–40 min | Assess the priority competencies with evidence and probes. |
| Candidate Questions & Close | 5–10 min | Answer their questions, explain next steps, and close warmly. |
Think of a Flight
A flight has a short takeoff, a long cruise, and a smooth landing. The cruise is where the journey happens. An interview is the same: a quick opening, a long core, and a clean close — and the core is where the real work is done.
Phase 1: The Opening (about 5 minutes)
The opening sets the tone for the whole interview. Its goal is not to assess the candidate, but to make them comfortable and clear about what is coming.
Welcome the Candidate
Greet them warmly and introduce yourself and your role.
Explain the Format
Briefly outline how the interview will run and roughly how long it will take.
Use a Light Icebreaker
A neutral, friendly question helps calm nerves so the candidate can perform.
Phase 2: The Core Questions (30–40 minutes)
This is the heart of the interview and the largest block of time. Here you assess your priority competencies, gather evidence, and probe for depth.
Ask Your Priority Questions
Work through the core questions chosen for the role and level.
Probe for Depth
Use follow-up probes to get beneath the first answer and find real evidence.
Record Evidence as You Go
Take notes on what the candidate actually says and does, in real time.
Pace Yourself
Roughly divide the time across your competencies so none get squeezed out.
Phase 3: Candidate Questions & Close (5–10 minutes)
The final phase is easy to forget, but it matters. It gives the candidate a voice and leaves a strong, professional final impression.
Invite Their Questions
Give the candidate genuine time to ask about the role, team, or process.
Explain the Next Steps
Clearly describe what happens next in the process and rough timing.
Close Warmly
Thank the candidate for their time and end on a respectful, positive note.
Managing the Time Across Phases
Good timing is a skill. A few simple habits keep the interview on track without feeling mechanical.
- Keep an eye on the clock at natural transition points.
- If the opening runs long, tighten the next transition.
- Leave a mental "warning marker" a few minutes before the close.
- If time runs short, prioritize your most critical competency.
- Never sacrifice the close to squeeze in one more question.
Worked Example: A 45-Minute Timeline
| Time | What Happens |
|---|---|
| 0–5 min | Welcome, introduce yourself, explain format, quick icebreaker. |
| 5–40 min | Five priority competency questions, each with probes (~7 min each). |
| 40–45 min | Candidate questions, next steps, and a warm close. |
Adapting the Structure
The same three phases scale to different interview lengths. Only the core block changes size.
| Total Time | Opening | Core | Close |
|---|---|---|---|
| 30 min | ~4 min | ~21 min | ~5 min |
| 45 min | ~5 min | ~35 min | ~5 min |
| 60 min | ~5 min | ~45 min | ~10 min |
Best Practices for Interview Structure
- Keep the opening warm but under about 5 minutes.
- Give the core questions the largest block of time.
- Pace the core evenly across your priority competencies.
- Always reserve time for candidate questions and the close.
- Watch the clock at transitions, not constantly.
- If short on time, protect your most critical competency and the close.
Common Mistakes
Avoid These
- Spending too long on the opening.
- Letting one question eat the whole core.
- Running out of time before key competencies.
- Skipping the candidate's questions.
- Ending abruptly with no next steps.
Do These Instead
- Keep the opening short and warm.
- Pace evenly across competencies.
- Cover priorities first.
- Always invite candidate questions.
- Close with clear next steps.
Real-World Use Cases
Fresher Interview
A calm 5-minute opening settles a nervous graduate, so they perform far better in the core question block.
Back-to-Back Interviews
A fixed structure keeps each interview on time, so a busy schedule of interviews stays consistent and does not overrun.
Strong Candidate Experience
Reserving time for the candidate's questions and a warm close leaves a positive impression, even for those not selected.
Frequently Asked Questions
Why should the opening only be about 5 minutes?
The opening builds rapport but gathers no assessment evidence. Keeping it short protects the core question block, where your real evidence comes from.
What if a candidate gives very long answers?
Gently guide them back with a transition like "That's helpful — let's move to the next area." Pacing across competencies keeps every priority covered.
Is the candidate-questions phase really necessary?
Yes. It gives the candidate a voice, helps them evaluate the role, and leaves a professional final impression. It should always be protected.
What if I run out of time?
Prioritize your most critical competency and still reserve time for a brief close. Never skip the close just to fit one more question.
Does this structure work for technical interviews too?
Yes. The same three phases apply — the core block simply contains technical tasks and questions instead of, or alongside, behavioural ones.
Conclusion
A 45-minute interview works best when it follows a clear three-phase structure: a short opening to settle the candidate, a substantial core block to gather evidence on your priority competencies, and a proper close that invites questions and explains next steps. Each phase has a purpose and a protected slice of time.
Keep the opening warm but brief, give the core questions the lion's share of the time, pace evenly across your competencies, and never skip the close. With this structure, your limited minutes are spent exactly where they matter most — and every candidate gets a fair, focused, and professional interview.
Key Takeaways
Structure a 45-minute interview in three phases: a ~5-minute opening, a 30–40 minute core question block, and a 5–10 minute candidate questions and close. Give the core the most time, pace evenly across competencies, and always protect the close.