How to Prepare for an Interview in 24 Hours (Checklist)
Sometimes the call comes on Tuesday and the interview is Wednesday. You don't have time to prepare everything, so you need to prepare the right things. This plan covers what matters most in 24 hours, in order of impact, with links to our detailed guides for each step.
Quick answer: To prepare for an interview in 24 hours, research the company and role (1 hour), prepare and practise out loud your answers to the five most likely questions (2 hours), prepare three stories in STAR format (1 hour), write three questions for the interviewer, check your tech if it's online, and get a full night's sleep.
Hour 1: research the company and role
- Read the job description twice. Highlight the top five skills or duties.
- Read the company website: what they sell, who their customers are, recent news.
- Look up your interviewers on LinkedIn if you know their names.
- Note one specific thing that genuinely interests you about the company.
Hours 2 and 3: prepare your top answers
Write and say out loud your answers to:
- Tell me about yourself
- Why do you want to work here?
- Why should we hire you?
- What are your strengths and weaknesses?
- Why are you leaving your current job? (if you're employed)
Don't memorise word for word. Know the key points and a number or example for each.
Hour 4: three STAR stories
Pick three stories that can answer many questions: a success, a conflict or challenge, and a mistake you learned from. Write each in STAR format in a few lines.
If there's a gap or a layoff in your history, prepare a short answer for that too, using our guides on career gaps and layoffs.
Hour 5: role-specific preparation
Spend an hour on the skills the role will test:
- Software roles: revise your projects and do three problems out loud. See DSA patterns and thinking out loud.
- Data roles: SQL and one case question. See data analyst interview questions.
- Sales: your numbers and the "sell me this pen" structure.
- Support and BPO: the angry customer approach from our customer service guide.
- Product: one product sense and one metrics question. See PM interview questions.
- Marketing: metrics and one campaign case. See digital marketing questions.
- Finance: statements, ratios and tax basics. See finance and accounting questions.
- Freshers at large IT companies: see our service company interview guide.
15 minutes: salary and logistics
Know your current CTC, your expected range, and your notice period. Our salary expectations guide will help you set a number.
15 minutes: questions for them
Write down three to five questions. Pick from our list of smart questions to ask the interviewer.
30 minutes: tech check (online interviews)
Test your internet, mic, camera and the meeting platform. Run through our online interview checklist.
The evening before
- Lay out your clothes.
- Keep your resume, notes and a glass of water ready.
- Stop preparing at least an hour before bed.
- Sleep. It helps your memory more than another hour of cramming.
The morning of
- Eat something light.
- Warm up by answering two questions out loud.
- Reread your key points once, not everything.
- Join or arrive a few minutes early.
If nerves are the problem, our guide on what to do when your mind goes blank has techniques you can use in the moment. If English is a worry, see our English interview tips.
After the interview
Send a short thank-you email within 24 hours. Use our follow-up email templates.
A safety net
Even with good preparation, some questions will surprise you. SilentlyAI listens along on your interview call and shows a suggested answer on your screen when you ask, so a surprise question doesn't become a long silence. It's free to try, with no card needed.
Frequently asked questions
Can I prepare for an interview in one day?
Yes. Focus on company research, your top five answers, three STAR stories, role-specific basics, and questions for the interviewer, then get enough sleep.
What should I do the night before an interview?
Prepare your clothes and documents, do a tech check if it's online, review key points briefly, and stop studying at least an hour before sleep.
What are the most important questions to prepare?
Tell me about yourself, why this company, why should we hire you, strengths and weaknesses, and why you're leaving your current job.
How do I calm my nerves before an interview?
Warm up by speaking out loud, breathe slowly, prepare a few bridging phrases for pauses, and remind yourself that some nervousness is normal.
