The Timezone Trap
A medium Python mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- Python
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
Return the billing month, as `YYYY-MM`, of every completed San Francisco trip in `trips`, keyed by its `trip_id`, where we bill by the calendar month on a Pacific clock even though `completed_utc` is recorded in UTC.
Summary
Trip data and timezones. They're not the same thing.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your Python against test cases
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision