Java ZoneId: Purpose & Usage

ZoneId is a class provided in Java 8 that is used to represent time zones. Its purpose is to convert between different time zones and manipulate dates and times.

The ZoneId class offers various methods for obtaining all available time zones in the system, as well as retrieving specific timezone information based on its ID. It can also convert date and time from one timezone to another, calculate time differences between different time zones, and more.

By using the ZoneId class, it is easy to handle dates and times globally and avoid calculation errors caused by timezone differences.