Date & Time API

Everything you need to master dates and times in Java. This category covers the Java 8 Date and Time API (java.time) from the ground up — LocalDate, LocalTime and LocalDateTime, ZonedDateTime and time zones, Instant and epoch time, Period and Duration, and formatting with DateTimeFormatter. You will also find practical guides on converting legacy Date and Calendar code to the modern API. Clear explanations, runnable examples, and the gotchas that actually trip people up.