Java Utililty Methods ZoneId

List of utility methods to do ZoneId

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Description

The list of methods to do ZoneId are organized into topic(s).

Method

ZoneIddetermineTimeZoneId(String zoneId)
determine Time Zone Id 
try {
    return ZoneId.of(zoneId);
} catch (Exception e) {
    return ZoneId.systemDefault();
LocalDateTimefromEpochMilliseconds(final Long fromEpoch)
from Epoch Milliseconds 
return LocalDateTime.ofInstant(Instant.ofEpochMilli(fromEpoch), systemDefaultZoneId);
ZoneIdgetDefaultTimeZone()
get Default Time Zone 
return ZoneId.systemDefault();
ZoneIdgetDefaultZoneId()
Returns the default zone id used dor user interface (UI) 
return defaultZoneId;
ZoneIdgetDefaultZoneId()
get Default Zone Id 
ZoneId zone = null;
try {
    try {
        String id = System.getProperty("user.timezone");
        if (id != null) {
            zone = ZoneId.of(id);
    } catch (RuntimeException ex) {
...
ZoneIdgetRequestTimeZone(String timestamp)
Return the ZoneId of given ISO8601 timestamp 
return ZonedDateTime.parse(timestamp).getZone();
ZoneIdgetTimezone(String tzid)
Get the ZoneId of a String that could be a valid tzid. 
try {
    return ZoneId.of(tzid);
} catch (Exception e) {
    return ZoneId.of("America/New_York");
ZoneIdgetTimeZoneId(final TimeZone tz)
Get time zone id .ZoneId.SHORT_IDS used get id if time zone is abbreviated like 'IST'. 
return ZoneId.of(tz.getID(), ZoneId.SHORT_IDS);
ZonedDateTimegetZoneDateTime(Date d, String tzId)
get Zone Date Time 
long milli = (d == null ? new Date() : d).getTime();
return Instant.ofEpochMilli(milli).atZone(getZoneId(tzId));
ZoneIdgetZoneId()
get Zone Id 
return ZoneId.systemDefault();