zoneId
ZoneId is a class in the Java time API (java.time) that represents a time zone identifier. It encodes the rules that determine how a region’s local time relates to Coordinated Universal Time (UTC), including how offsets may change during daylight saving time. ZoneId is immutable and thread-safe, and it is used to convert instants or local dates and times into the appropriate local representation for a given region.
Zone identifiers come from the IANA Time Zone Database. The most common forms are region-based IDs such
Key relationships and usage: ZoneId works with other parts of the time API, notably ZonedDateTime, LocalDateTime,
Limitations and scope: ZoneId identifiers are drawn from the IANA database, which means available IDs may vary