Postgres Timestamp Vs Timestamptz Review

If you have ever built an app that serves users across multiple time zones, you’ve likely woken up to a 3:00 AM page about "incorrect order dates" or "meetings showing up at the wrong hour."

If your column is TIMESTAMPTZ , but your application sends a naive timestamp, PostgreSQL will assume the timestamp is in your session's time zone. If your server is in UTC and your user is in Sydney – . postgres timestamp vs timestamptz

Always use in your application code. Quick Decision Flowchart Is this a single, absolute moment in time? │ ├── YES (e.g., created_at, updated_at, event start time for global users) │ → Use TIMESTAMPTZ │ └── NO (e.g., "Every day at 9 AM" recurring alarm) → Use TIMESTAMP + store time zone separately in another column Pro Tip: TIMESTAMPTZ Does NOT Store the Time Zone This is the #1 misunderstanding. TIMESTAMPTZ does not save 'America/Chicago' or '+05:30' . It converts your input to UTC, stores UTC, and discards the original offset. If you have ever built an app that

Chances are, you chose the wrong PostgreSQL temporal data type. Quick Decision Flowchart Is this a single, absolute