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1Z0-829 Java 17 Date/Time API Guide

Study 1Z0-829 Java 17 Date/Time API: key concepts, common traps, and exam decision cues.

This is a smaller scoring lane, but it is still worth easy points if you keep immutability, zones, and formatting rules straight.

Work this chapter in order

Lesson Focus
12.1 Temporal Types Learn how the exam tests temporal type selection, zone handling, and formatting or parsing behavior.

Fast routing inside this chapter

If the question is really about… Go first to…
choosing LocalDate, Instant, or ZonedDateTime 12.1 Temporal Types
Period vs Duration 12.1 Temporal Types
formatting, parsing, or zone conversion 12.1 Temporal Types

What strong answers usually do

  • choose the type that actually models the requirement
  • remember the API is immutable and returns new values
  • treat zones and formatting as explicit parts of the problem

In this section

Revised on Sunday, May 10, 2026