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(); }