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data-engineering•Jan 10, 2026
Understanding Timestamp vs Timestamptz in PostgreSQL
PostgreSQL's timezone handling can silently shift your data to the previous day, causing unexpected results. Learn how to avoid this issue by understanding the difference between timestamp and timestamptz data types.
medium
Original source
Key summary
PostgreSQL's timezone handling can cause date and time data to shift to the previous day, leading to unexpected results. This article explains the difference between timestamp and timestamptz data types and how to avoid this issue.
TL;DR
- PostgreSQL's timezone handling can cause date and time data to shift to the previous day.
- The issue arises from the use of the timestamp data type.
- Timestamptz data type is designed to handle timezones correctly.
- Using timestamptz can prevent date and time data from shifting to the previous day.
- Understanding the difference between timestamp and timestamptz is crucial for accurate date and time calculations.
This content is automatically summarized using AI. For full context, always refer to the original article.
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