`java.time.ZonedDateTime` is a class in the Java programming language that represents a date and time with a specific time zone. It combines the date and time information with the time zone, allowing for accurate representation of moments in time across different regions. This is particularly useful for applications that need to handle dates and times in a global context. The class is part of the java.time package, introduced in Java 8 to improve date and time handling. It provides various methods for creating, manipulating, and formatting date-time objects, making it easier for developers to work with time-related data in their applications.