Java Code Examples for java.util.TimeZone#inDaylightTime()
The following examples show how to use
java.util.TimeZone#inDaylightTime() .
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Example 1
| Source File: Utils_Time.java From SweetBlue with GNU General Public License v3.0 | 6 votes |
|
/**
* Returns the local time info as a byte array, useful for implementing {@link BleServices#currentTime()} for example.
*/
public static byte[] getLocalTimeInfo()
{
final byte[] info = new byte[2];
final TimeZone timeZone = TimeZone.getDefault();
int offset = timeZone.getOffset( System.currentTimeMillis() );
offset /= 1800000; // see CTS spec for why this is like this: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.time_zone.xml
offset *= 2;
info[0] = (byte)offset;
final byte dst;
if ( timeZone.useDaylightTime() && timeZone.inDaylightTime( new GregorianCalendar().getTime() ) )
{
final int savings = timeZone.getDSTSavings();
dst = (byte)(savings / 900000);
}
else
{
dst = 0;
}
info[1] = dst;
return info;
}
Example 2
| Source File: DateFunctions.java From jphp with Apache License 2.0 | 6 votes |
|
public static Memory gettimeofday(boolean getAsFloat) {
long msec_time = System.currentTimeMillis();
if (getAsFloat) {
double now = msec_time / 1000.0;
return new DoubleMemory(now);
} else {
ArrayMemory result = new ArrayMemory();
TimeZone timeZone = TimeZone.getDefault();
long sec = msec_time / 1000;
long usec = (msec_time % 1000) * 1000;
long minuteswest = -timeZone.getOffset(msec_time) / MSEC_IN_MIN;
boolean is_dst = timeZone.inDaylightTime(new Date(msec_time));
result.refOfIndex("sec").assign(sec);
result.refOfIndex("usec").assign(usec);
result.refOfIndex("minuteswest").assign(minuteswest);
result.refOfIndex("dsttime").assign(is_dst ? 1 : 0);
return result.toConstant();
}
}
Example 3
| Source File: ConversionUtils.java From OpenRate with Apache License 2.0 | 6 votes |
|
/**
* This function converts a date to a GMT date
*
* @param date The date to convert
* @return The date at GMT
*/
public Date getGmtDate( Date date )
{
TimeZone tz = TimeZone.getDefault();
Date ret = new Date( date.getTime() - tz.getRawOffset() );
// if we are now in DST, back off by the delta. Note that we are
// checking the GMT date, this is the KEY.
if ( tz.inDaylightTime( ret ))
{
Date dstDate = new Date( ret.getTime() - tz.getDSTSavings() );
// check to make sure we have not crossed back into standard time
// this happens when we are on the cusp of DST (7pm the day before
// the change for PDT)
if ( tz.inDaylightTime( dstDate ))
{
ret = dstDate;
}
}
return ret;
}
Example 4
| Source File: Globalization.java From jpHolo with MIT License | 5 votes |
|
private JSONObject getIsDayLightSavingsTime(JSONArray options) throws GlobalizationError{
JSONObject obj = new JSONObject();
boolean dst = false;
try{
Date date = new Date((Long)options.getJSONObject(0).get(DATE));
//TimeZone tz = Calendar.getInstance(Locale.getDefault()).getTimeZone();
TimeZone tz = TimeZone.getTimeZone(Time.getCurrentTimezone());
dst = tz.inDaylightTime(date); //get daylight savings data from date object and user timezone settings
return obj.put("dst",dst);
}catch(Exception ge){
throw new GlobalizationError(GlobalizationError.UNKNOWN_ERROR);
}
}
Example 5
| Source File: ASN1GeneralizedTime.java From RipplePower with Apache License 2.0 | 5 votes |
|
private String calculateGMTOffset()
{
String sign = "+";
TimeZone timeZone = TimeZone.getDefault();
int offset = timeZone.getRawOffset();
if (offset < 0)
{
sign = "-";
offset = -offset;
}
int hours = offset / (60 * 60 * 1000);
int minutes = (offset - (hours * 60 * 60 * 1000)) / (60 * 1000);
try
{
if (timeZone.useDaylightTime() && timeZone.inDaylightTime(this.getDate()))
{
hours += sign.equals("+") ? 1 : -1;
}
}
catch (ParseException e)
{
// we'll do our best and ignore daylight savings
}
return "GMT" + sign + convert(hours) + ":" + convert(minutes);
}
Example 6
| Source File: Globalization.java From phonegapbootcampsite with MIT License | 5 votes |
|
private JSONObject getIsDayLightSavingsTime(JSONArray options) throws GlobalizationError{
JSONObject obj = new JSONObject();
boolean dst = false;
try{
Date date = new Date((Long)options.getJSONObject(0).get(DATE));
//TimeZone tz = Calendar.getInstance(Locale.getDefault()).getTimeZone();
TimeZone tz = TimeZone.getTimeZone(Time.getCurrentTimezone());
dst = tz.inDaylightTime(date); //get daylight savings data from date object and user timezone settings
return obj.put("dst",dst);
}catch(Exception ge){
throw new GlobalizationError(GlobalizationError.UNKNOWN_ERROR);
}
}
Example 7
| Source File: TestZoneTextPrinterParser.java From openjdk-8-source with GNU General Public License v2.0 | 5 votes |
|
public void test_printText() {
Random r = new Random();
int N = 50;
Locale[] locales = Locale.getAvailableLocales();
Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
ZonedDateTime zdt = ZonedDateTime.now();
//System.out.printf("locale==%d, timezone=%d%n", locales.length, zids.size());
while (N-- > 0) {
zdt = zdt.withDayOfYear(r.nextInt(365) + 1)
.with(ChronoField.SECOND_OF_DAY, r.nextInt(86400));
for (String zid : zids) {
if (zid.equals("ROC") || zid.startsWith("Etc/GMT")) {
continue; // TBD: match jdk behavior?
}
zdt = zdt.withZoneSameLocal(ZoneId.of(zid));
TimeZone tz = TimeZone.getTimeZone(zid);
boolean isDST = tz.inDaylightTime(new Date(zdt.toInstant().toEpochMilli()));
for (Locale locale : locales) {
printText(locale, zdt, TextStyle.FULL, tz,
tz.getDisplayName(isDST, TimeZone.LONG, locale));
printText(locale, zdt, TextStyle.SHORT, tz,
tz.getDisplayName(isDST, TimeZone.SHORT, locale));
}
}
}
}
Example 8
| Source File: TestZoneTextPrinterParser.java From hottub with GNU General Public License v2.0 | 5 votes |
|
public void test_printText() {
Random r = RandomFactory.getRandom();
int N = 8;
Locale[] locales = Locale.getAvailableLocales();
Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
ZonedDateTime zdt = ZonedDateTime.now();
//System.out.printf("locale==%d, timezone=%d%n", locales.length, zids.size());
while (N-- > 0) {
zdt = zdt.withDayOfYear(r.nextInt(365) + 1)
.with(ChronoField.SECOND_OF_DAY, r.nextInt(86400));
for (String zid : zids) {
if (zid.equals("ROC") || zid.startsWith("Etc/GMT")) {
continue; // TBD: match jdk behavior?
}
zdt = zdt.withZoneSameLocal(ZoneId.of(zid));
TimeZone tz = TimeZone.getTimeZone(zid);
boolean isDST = tz.inDaylightTime(new Date(zdt.toInstant().toEpochMilli()));
for (Locale locale : locales) {
printText(locale, zdt, TextStyle.FULL, tz,
tz.getDisplayName(isDST, TimeZone.LONG, locale));
printText(locale, zdt, TextStyle.SHORT, tz,
tz.getDisplayName(isDST, TimeZone.SHORT, locale));
}
}
}
}
Example 9
| Source File: ConversionUtils.java From OpenRate with Apache License 2.0 | 5 votes |
|
/**
* This function sees if a date is in Daylight Savings Time (DST)
*
* @param date The date the check
* @return True if the date is in DST otherwise false
*/
public boolean getDateInDST( Date date )
{
TimeZone tz = TimeZone.getDefault();
boolean RetValue = tz.inDaylightTime(date);
return RetValue;
}
Example 10
| Source File: Globalization.java From cordova-android-chromeview with Apache License 2.0 | 5 votes |
|
private JSONObject getIsDayLightSavingsTime(JSONArray options) throws GlobalizationError{
JSONObject obj = new JSONObject();
boolean dst = false;
try{
Date date = new Date((Long)options.getJSONObject(0).get(DATE));
//TimeZone tz = Calendar.getInstance(Locale.getDefault()).getTimeZone();
TimeZone tz = TimeZone.getTimeZone(Time.getCurrentTimezone());
dst = tz.inDaylightTime(date); //get daylight savings data from date object and user timezone settings
return obj.put("dst",dst);
}catch(Exception ge){
throw new GlobalizationError(GlobalizationError.UNKNOWN_ERROR);
}
}
Example 11
| Source File: TimeZoneInfo.java From es6draft with MIT License | 5 votes |
|
@Override
public String getDisplayName(TimeZone tz, long date) {
boolean daylightSavings = tz.inDaylightTime(new Date(date));
if (!daylightSavings && tz.getOffset(date) != tz.getRawOffset()) {
daylightSavings = tz.useDaylightTime();
}
return tz.getDisplayName(daylightSavings, TimeZone.SHORT, Locale.US);
}
Example 12
| Source File: TestZoneTextPrinterParser.java From jdk8u_jdk with GNU General Public License v2.0 | 5 votes |
|
public void test_printText() {
Random r = RandomFactory.getRandom();
int N = 8;
Locale[] locales = Locale.getAvailableLocales();
Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
ZonedDateTime zdt = ZonedDateTime.now();
//System.out.printf("locale==%d, timezone=%d%n", locales.length, zids.size());
while (N-- > 0) {
zdt = zdt.withDayOfYear(r.nextInt(365) + 1)
.with(ChronoField.SECOND_OF_DAY, r.nextInt(86400));
for (String zid : zids) {
if (zid.equals("ROC") || zid.startsWith("Etc/GMT")) {
continue; // TBD: match jdk behavior?
}
zdt = zdt.withZoneSameLocal(ZoneId.of(zid));
TimeZone tz = TimeZone.getTimeZone(zid);
boolean isDST = tz.inDaylightTime(new Date(zdt.toInstant().toEpochMilli()));
for (Locale locale : locales) {
String longDisplayName = tz.getDisplayName(isDST, TimeZone.LONG, locale);
String shortDisplayName = tz.getDisplayName(isDST, TimeZone.SHORT, locale);
if ((longDisplayName.startsWith("GMT+") && shortDisplayName.startsWith("GMT+"))
|| (longDisplayName.startsWith("GMT-") && shortDisplayName.startsWith("GMT-"))) {
printText(locale, zdt, TextStyle.FULL, tz, tz.getID());
printText(locale, zdt, TextStyle.SHORT, tz, tz.getID());
continue;
}
printText(locale, zdt, TextStyle.FULL, tz,
tz.getDisplayName(isDST, TimeZone.LONG, locale));
printText(locale, zdt, TextStyle.SHORT, tz,
tz.getDisplayName(isDST, TimeZone.SHORT, locale));
}
}
}
}
Example 13
| Source File: TestZoneTextPrinterParser.java From openjdk-jdk9 with GNU General Public License v2.0 | 5 votes |
|
public void test_printText() {
Random r = RandomFactory.getRandom();
int N = 8;
Locale[] locales = Locale.getAvailableLocales();
Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
ZonedDateTime zdt = ZonedDateTime.now();
//System.out.printf("locale==%d, timezone=%d%n", locales.length, zids.size());
while (N-- > 0) {
zdt = zdt.withDayOfYear(r.nextInt(365) + 1)
.with(ChronoField.SECOND_OF_DAY, r.nextInt(86400));
for (String zid : zids) {
if (zid.equals("ROC") || zid.startsWith("Etc/GMT")) {
continue; // TBD: match jdk behavior?
}
zdt = zdt.withZoneSameLocal(ZoneId.of(zid));
TimeZone tz = TimeZone.getTimeZone(zid);
boolean isDST = tz.inDaylightTime(new Date(zdt.toInstant().toEpochMilli()));
for (Locale locale : locales) {
String longDisplayName = tz.getDisplayName(isDST, TimeZone.LONG, locale);
String shortDisplayName = tz.getDisplayName(isDST, TimeZone.SHORT, locale);
if ((longDisplayName.startsWith("GMT+") && shortDisplayName.startsWith("GMT+"))
|| (longDisplayName.startsWith("GMT-") && shortDisplayName.startsWith("GMT-"))) {
printText(locale, zdt, TextStyle.FULL, tz, tz.getID());
printText(locale, zdt, TextStyle.SHORT, tz, tz.getID());
continue;
}
printText(locale, zdt, TextStyle.FULL, tz,
tz.getDisplayName(isDST, TimeZone.LONG, locale));
printText(locale, zdt, TextStyle.SHORT, tz,
tz.getDisplayName(isDST, TimeZone.SHORT, locale));
}
}
}
}
Example 14
| Source File: TestZoneTextPrinterParser.java From jdk8u-dev-jdk with GNU General Public License v2.0 | 5 votes |
|
public void test_printText() {
Random r = new Random();
int N = 50;
Locale[] locales = Locale.getAvailableLocales();
Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
ZonedDateTime zdt = ZonedDateTime.now();
//System.out.printf("locale==%d, timezone=%d%n", locales.length, zids.size());
while (N-- > 0) {
zdt = zdt.withDayOfYear(r.nextInt(365) + 1)
.with(ChronoField.SECOND_OF_DAY, r.nextInt(86400));
for (String zid : zids) {
if (zid.equals("ROC") || zid.startsWith("Etc/GMT")) {
continue; // TBD: match jdk behavior?
}
zdt = zdt.withZoneSameLocal(ZoneId.of(zid));
TimeZone tz = TimeZone.getTimeZone(zid);
boolean isDST = tz.inDaylightTime(new Date(zdt.toInstant().toEpochMilli()));
for (Locale locale : locales) {
printText(locale, zdt, TextStyle.FULL, tz,
tz.getDisplayName(isDST, TimeZone.LONG, locale));
printText(locale, zdt, TextStyle.SHORT, tz,
tz.getDisplayName(isDST, TimeZone.SHORT, locale));
}
}
}
}
Example 15
| Source File: TimeZones.java From cuba with Apache License 2.0 | 5 votes |
|
/**
* @return short string representation of the given time zone
*/
public String getDisplayNameShort(@Nullable TimeZone timeZone) {
if (timeZone == null)
return "";
boolean dst = timeZone.inDaylightTime(timeSource.currentTimestamp());
String name = timeZone.getDisplayName(dst, TimeZone.SHORT);
if (AD_HOC_TZ_PATTERN.matcher(name).matches())
return name;
else
return name + " (" + getDisplayOffset(timeZone) + ")";
}
Example 16
| Source File: TimeUtils.java From jellyfin-androidtv with GNU General Public License v2.0 | 5 votes |
|
public static Date convertToUtcDate(Date localDate) {
TimeZone timeZone = Calendar.getInstance().getTimeZone();
Date convertedDate = new Date(localDate.getTime() - timeZone.getRawOffset());
if (timeZone.inDaylightTime(localDate)) {
Date dstDate = new Date(convertedDate.getTime() - timeZone.getDSTSavings());
if (timeZone.inDaylightTime(dstDate)) {
return dstDate;
}
}
return convertedDate;
}
Example 17
| Source File: Utils.java From xDrip-plus with GNU General Public License v3.0 | 5 votes |
|
public static Date receiverTimeToDate(long delta) {
int currentTZOffset = TimeZone.getDefault().getRawOffset();
long epochMS = 1230768000000L; // Jan 01, 2009 00:00 in UTC
long milliseconds = epochMS - currentTZOffset;
long timeAdd = milliseconds + (1000L * delta);
TimeZone tz = TimeZone.getDefault();
if (tz.inDaylightTime(new Date())) timeAdd = timeAdd - (1000 * 60 * 60);
return new Date(timeAdd);
}
Example 18
| Source File: TestZoneTextPrinterParser.java From jdk8u60 with GNU General Public License v2.0 | 5 votes |
|
public void test_printText() {
Random r = RandomFactory.getRandom();
int N = 8;
Locale[] locales = Locale.getAvailableLocales();
Set<String> zids = ZoneRulesProvider.getAvailableZoneIds();
ZonedDateTime zdt = ZonedDateTime.now();
//System.out.printf("locale==%d, timezone=%d%n", locales.length, zids.size());
while (N-- > 0) {
zdt = zdt.withDayOfYear(r.nextInt(365) + 1)
.with(ChronoField.SECOND_OF_DAY, r.nextInt(86400));
for (String zid : zids) {
if (zid.equals("ROC") || zid.startsWith("Etc/GMT")) {
continue; // TBD: match jdk behavior?
}
zdt = zdt.withZoneSameLocal(ZoneId.of(zid));
TimeZone tz = TimeZone.getTimeZone(zid);
boolean isDST = tz.inDaylightTime(new Date(zdt.toInstant().toEpochMilli()));
for (Locale locale : locales) {
printText(locale, zdt, TextStyle.FULL, tz,
tz.getDisplayName(isDST, TimeZone.LONG, locale));
printText(locale, zdt, TextStyle.SHORT, tz,
tz.getDisplayName(isDST, TimeZone.SHORT, locale));
}
}
}
}
Example 19
| Source File: LocaleUtils.java From Openfire with Apache License 2.0 | 4 votes |
|
/**
* Returns the display name for a time zone. The display name is the name
* specified by the Java TimeZone class for non-"en" locales or a friendly english
* name for "en", with the addition of the GMT offset
* for human readability.
*
* @param zoneID the time zone to get the name for.
* @param locale the locale to use.
* @return the display name for the time zone.
*/
public static String getTimeZoneName(String zoneID, Locale locale) {
TimeZone zone = TimeZone.getTimeZone(zoneID);
StringBuilder buf = new StringBuilder();
// Add in the GMT part to the name. First, figure out the offset.
int offset = zone.getRawOffset();
if (zone.inDaylightTime(new Date()) && zone.useDaylightTime()) {
offset += (int)JiveConstants.HOUR;
}
buf.append('(');
if (offset < 0) {
buf.append("GMT-");
}
else {
buf.append("GMT+");
}
offset = Math.abs(offset);
int hours = offset / (int)JiveConstants.HOUR;
int minutes = (offset % (int)JiveConstants.HOUR) / (int)JiveConstants.MINUTE;
buf.append(hours).append(':');
if (minutes < 10) {
buf.append('0').append(minutes);
}
else {
buf.append(minutes);
}
buf.append(") ");
// Use a friendly english timezone name if the locale is en, otherwise use the timezone id
if ("en".equals(locale.getLanguage())) {
String name = nameMap.get(zoneID);
if (name == null) {
name = zoneID;
}
buf.append(name);
}
else {
buf.append(
zone.getDisplayName(true, TimeZone.LONG, locale).replace('_', ' ').replace('/',
' '));
}
return buf.toString();
}
Example 20
| Source File: ApiResponseHelper.java From cloudstack with Apache License 2.0 | 4 votes |
|
public String getDateStringInternal(Date inputDate) {
if (inputDate == null) {
return null;
}
TimeZone tz = _usageSvc.getUsageTimezone();
Calendar cal = Calendar.getInstance(tz);
cal.setTime(inputDate);
StringBuilder sb = new StringBuilder(32);
sb.append(cal.get(Calendar.YEAR)).append('-');
int month = cal.get(Calendar.MONTH) + 1;
if (month < 10) {
sb.append('0');
}
sb.append(month).append('-');
int day = cal.get(Calendar.DAY_OF_MONTH);
if (day < 10) {
sb.append('0');
}
sb.append(day);
sb.append("'T'");
int hour = cal.get(Calendar.HOUR_OF_DAY);
if (hour < 10) {
sb.append('0');
}
sb.append(hour).append(':');
int minute = cal.get(Calendar.MINUTE);
if (minute < 10) {
sb.append('0');
}
sb.append(minute).append(':');
int seconds = cal.get(Calendar.SECOND);
if (seconds < 10) {
sb.append('0');
}
sb.append(seconds);
double offset = cal.get(Calendar.ZONE_OFFSET);
if (tz.inDaylightTime(inputDate)) {
offset += (1.0 * tz.getDSTSavings()); // add the timezone's DST
// value (typically 1 hour
// expressed in milliseconds)
}
offset = offset / (1000d * 60d * 60d);
int hourOffset = (int)offset;
double decimalVal = Math.abs(offset) - Math.abs(hourOffset);
int minuteOffset = (int)(decimalVal * 60);
if (hourOffset < 0) {
if (hourOffset > -10) {
sb.append("-0");
} else {
sb.append('-');
}
sb.append(Math.abs(hourOffset));
} else {
if (hourOffset < 10) {
sb.append("+0");
} else {
sb.append("+");
}
sb.append(hourOffset);
}
sb.append(':');
if (minuteOffset == 0) {
sb.append("00");
} else if (minuteOffset < 10) {
sb.append('0').append(minuteOffset);
} else {
sb.append(minuteOffset);
}
return sb.toString();
}
