To Zone

Use toZone(ZoneId) to convert any supported temporal type to a java.time.ZonedDateTime in a specific timezone and write it back to the field.

import java.time.ZoneId;
import static dev.ditsche.teki.rule.builder.Rules.*;

Teki schema = Teki.fromRules(
    temporal("scheduledAt").required().toZone(ZoneId.of("Europe/Berlin")),
    temporal("meetingAt").toZone(ZoneId.of("America/New_York"))
);

The point in time is preserved — only the timezone representation changes. An Instant of 2024-06-15T12:00:00Z converted to Europe/Berlin (UTC+2 in summer) becomes 2024-06-15T14:00:00+02:00[Europe/Berlin].

Input types

toZone accepts any temporal type that temporal() recognizes:

• java.time.Instant
• java.time.ZonedDateTime
• java.time.OffsetDateTime
• java.time.LocalDateTime
• java.time.LocalDate
• java.util.Date
• java.util.Calendar

All are first converted to an Instant, then wrapped as ZonedDateTime in the target zone.

Available on

• temporal(...)

Annotation equivalent

import dev.ditsche.teki.annotation.ToZone;

public class EventRequest {
    @ToZone("Europe/Berlin")
    private Instant startsAt;

    @ToZone("America/New_York")
    private ZonedDateTime meetingAt;
}