How do you handle timezones for a global daily sales report?
This tests your ability to translate ambiguous business needs (a "day") into a robust data model. First, clarify the business definition of a day. Then, store all event times in UTC and convert to the target timezone at query time for reporting.
This question tests your ability to translate ambiguous business requirements into a robust data model. It's about clarifying needs and designing for future flexibility. A strong answer first clarifies if a "day" is UTC, a fixed HQ timezone, or local to the sale. Then, it proposes storing all event timestamps in UTC, along with the event's IANA timezone identifier, to support any reporting need. The biggest red flag is proposing a solution without asking for business context.
Read the original → tinybird.co
- #data modeling
- #analytics
- #timezones
- #sql
- #system design
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