public RecurringJobBuilder withZoneId(ZoneId zoneId) {
        this.zoneId = zoneId;
        return this;
    }
@Test
    void testWithZoneId() {
        RecurringJob recurringJob = aRecurringJob()
                .withZoneId(ZoneId.of("Europe/Brussels"))
                .withCron(every5Seconds)
                .withDetails(() -> testService.doWork())
                .build(jobDetailsGenerator);

        assertThat(recurringJob)
                .hasZoneId("Europe/Brussels")
                .hasId()
                .hasScheduleExpression(every5Seconds);
    }