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 rules, allowing for accurate representation of moments in time across different regions. This is particularly useful for applications that need to handle time-sensitive data, such as scheduling events or logging activities. The ZonedDateTime class is part of the java.time package, introduced in Java 8. It provides various methods to manipulate and format date-time values, making it easier for developers to work with time-related data while considering factors like daylight saving time and local time zone differences.