Working with Date, Time, and Time Zones in PostgreSQL

Managing dates, times, and time zones across different regions is one of the most common sources of bugs in database development. This course provides a clear, step-by-step path to understanding how PostgreSQL stores, processes, and converts temporal data. You will move from confusion about offsets to confidently writing queries that handle global timezone shifts seamlessly. By completing this text-only course, you will transform how you handle temporal logic, ensuring your applications store precise records and generate accurate reports regardless of where your users are located. What you'll learn: - Understand the core differences between timestamp, timestamptz, date, and interval data types - Configure session-level and database-level time zone settings for consistent query behavior - Apply built-in PostgreSQL date-time functions to extract, format, and manipulate temporal data - Convert timestamps accurately between different time zones using the AT TIME ZONE operator - Calculate durations and schedule recurring events using precise interval arithmetic - Implement modern database indexing strategies on date-time columns to optimize query performance You will begin with essential temporal concepts and foundational definitions before diving into hands-on SQL query patterns, common pitfalls, and real-world scenarios. The course concludes with practical strategies for writing clean, performant, and bug-free date-time logic. This course is designed for beginner to intermediate database developers, backend engineers, and data analysts who want to eliminate time-related bugs in PostgreSQL. No prior experience with complex timezone logic is required. Start mastering temporal data in PostgreSQL today.