Example usage for java.util TimeZone inDaylightTime

Introduction

In this page you can find the example usage for java.util TimeZone inDaylightTime.

Prototype

public abstract boolean inDaylightTime(Date date);

Source Link

Document

Queries if the given date is in Daylight Saving Time in this time zone.

Usage

From source file:org.apache.accumulo.monitor.servlets.DefaultServlet.java

/**
 * Shows the current time zone (based on the current time) short name
 *///from w  w w .  j  a v  a2  s  . c  om
private static String getShortTZName() {
    TimeZone tz = TimeZone.getDefault();
    return tz.getDisplayName(tz.inDaylightTime(new Date()), TimeZone.SHORT);
}

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From source file:com.mycompany.craftdemo.utility.java

public static boolean isValidTime() {
    Calendar calendar = Calendar.getInstance();
    TimeZone fromTimeZone = calendar.getTimeZone();
    TimeZone toTimeZone = TimeZone.getTimeZone("EST");

    calendar.setTimeZone(fromTimeZone);//from   w ww .j  av  a  2 s.  c  o m
    calendar.add(Calendar.MILLISECOND, fromTimeZone.getRawOffset() * -1);
    if (fromTimeZone.inDaylightTime(calendar.getTime())) {
        calendar.add(Calendar.MILLISECOND, calendar.getTimeZone().getDSTSavings() * -1);
    }

    calendar.add(Calendar.MILLISECOND, toTimeZone.getRawOffset());
    if (toTimeZone.inDaylightTime(calendar.getTime())) {
        calendar.add(Calendar.MILLISECOND, toTimeZone.getDSTSavings());
    }

    int hour = calendar.get(Calendar.HOUR_OF_DAY);

    return hour >= 9 && hour <= 16;
}

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From source file:com.lm.lic.manager.util.GenUtil.java

public static Date resetClientTimezone(HttpServletRequest request, Date date) {
    final TimeZone timeZone = TimeZone.getDefault();
    final boolean daylight = timeZone.inDaylightTime(date);
    final Locale locale = request.getLocale();
    String tzName = timeZone.getDisplayName(daylight, TimeZone.LONG, locale);
    // String countryCode = locale.getCountry();
    // TimeZone ltz = TimeZone.getTimeZone(countryCode);
    // TimeZoneNameUtility.getZoneStrings(locale);
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);//from w  w  w.  ja  v  a2  s . com
    cal.setTimeZone(TimeZone.getTimeZone(tzName));
    return cal.getTime();
}

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From source file:net.sf.jhylafax.fax.HylaFAXClientHelper.java

public static String calculateTime(Date sendTime, String timeZoneID) {
    if (sendTime == null) {
        return "NOW";
    } else {// www  . jav  a 2  s  .co  m
        long date = sendTime.getTime();

        TimeZone tz = TimeZone.getTimeZone(timeZoneID);
        //         tz.setStartRule(Calendar.MARCH, -1, Calendar.SUNDAY,  2*60*60*1000);
        //         tz.setEndRule(Calendar.OCTOBER, -1, Calendar.SUNDAY,  2*60*60*1000);

        date -= tz.getRawOffset();
        if (tz.inDaylightTime(sendTime)) {
            date -= 3600 * 1000;
        }

        return new SimpleDateFormat("yyyyMMddHHmm").format(new Date(date));
    }
}

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From source file:org.sakaiproject.component.section.sakai.CourseSectionImpl.java

public static final Time convertStringToTime(String str) {
    if (StringUtils.trimToNull(str) == null) {
        return null;
    }//from   www.j  a  v a  2  s  .c  o  m
    try {
        SimpleDateFormat sdf = new SimpleDateFormat(CourseSectionImpl.TIME_FORMAT_LONG);
        return new Time(sdf.parse(str).getTime());
    } catch (Exception e) {

        // Stored in other format, with date and time zone. 
        try {
            SimpleDateFormat sdf = new SimpleDateFormat(CourseSectionImpl.TIME_FORMAT_DATE_TZ);

            Calendar src = new GregorianCalendar();
            src.setTime(sdf.parse(str));
            src.setTimeInMillis(src.getTimeInMillis());

            TimeZone srcTz = sdf.getTimeZone();
            TimeZone userTz = timeService.getLocalTimeZone();
            TimeZone serverTz = TimeZone.getDefault();

            Calendar now = new GregorianCalendar(userTz);

            // STORED IN DAYLIGHT SAVING TIME and NOW IS STANDARD
            if (srcTz.inDaylightTime(src.getTime()) && !srcTz.inDaylightTime(now.getTime())) {
                src.setTimeInMillis(src.getTimeInMillis() + srcTz.getDSTSavings());
            }

            // STORED IN STANDAR TIME and NOW IS DAYLIGHT SAVING TIME
            if (srcTz.inDaylightTime(now.getTime()) && !srcTz.inDaylightTime(src.getTime())) {
                src.setTimeInMillis(src.getTimeInMillis() - srcTz.getDSTSavings());
            }

            // DO THE SAME IN SERVER TIMEZONE
            if (serverTz.inDaylightTime(src.getTime()) && !serverTz.inDaylightTime(now.getTime())) {
                src.setTimeInMillis(src.getTimeInMillis() - serverTz.getDSTSavings());
            }

            if (serverTz.inDaylightTime(now.getTime()) && !serverTz.inDaylightTime(src.getTime())) {
                src.setTimeInMillis(src.getTimeInMillis() + serverTz.getDSTSavings());
            }

            src.set(Calendar.DAY_OF_MONTH, now.get(Calendar.DAY_OF_MONTH));
            src.set(Calendar.YEAR, now.get(Calendar.YEAR));
            src.set(Calendar.MONTH, now.get(Calendar.MONTH));

            return new Time(src.getTimeInMillis() + userTz.getOffset(now.getTimeInMillis())
                    - serverTz.getOffset(now.getTimeInMillis()));

        } catch (Exception ex) {
            if (log.isDebugEnabled())
                log.debug("Unable to parse " + str);
            return null;
        }
    }
}

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From source file:com.hurence.logisland.utils.DateUtils.java

public static String outputDateInfo(Date d) {
    String output = "";
    Calendar c = GregorianCalendar.getInstance(tz);
    c.setTimeInMillis(d.getTime());//w  w  w  .  ja  v a  2s.c  o m
    TimeZone tzCal = c.getTimeZone();

    output += "Date:                         " + d + "\n"; // toString uses current system TimeZone
    output += "Date Millis:                  " + d.getTime() + "\n";
    output += "Cal Millis:                   " + c.getTimeInMillis() + "\n";
    output += "Cal To Date Millis:           " + c.getTime().getTime() + "\n";
    output += "Cal TimeZone Name:            " + tzCal.getDisplayName() + "\n";
    output += "Cal TimeZone ID:              " + tzCal.getID() + "\n";
    output += "Cal TimeZone DST Name:        " + tzCal.getDisplayName(true, TimeZone.SHORT) + "\n";
    output += "Cal TimeZone Standard Name:   " + tzCal.getDisplayName(false, TimeZone.SHORT) + "\n";
    output += "In DayLight:                  " + tzCal.inDaylightTime(d) + "\n";

    output += "" + "\n";
    output += "Day Of Month:                 " + c.get(Calendar.DAY_OF_MONTH) + "\n";
    output += "Month Of Year:                " + c.get(Calendar.MONTH) + "\n";
    output += "Year:                         " + c.get(Calendar.YEAR) + "\n";

    output += "Hour Of Day:                  " + c.get(Calendar.HOUR_OF_DAY) + "\n";
    output += "Minute:                       " + c.get(Calendar.MINUTE) + "\n";
    output += "Second:                       " + c.get(Calendar.SECOND) + "\n";

    return output;
}

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From source file:com.autodomum.daylight.algorithm.DaylightAlgorithm.java

@Override
public Date sunrise(final Coordinate coordinate, final Date date) {
    final Calendar calendar = GregorianCalendar.getInstance();
    calendar.setTime(date);/*from w w  w  . j a v a  2s . c om*/

    final int day = calendar.get(Calendar.DAY_OF_YEAR);

    final double total = length(coordinate.getLatitude(), day);

    final int hours = (int) total;
    final int minutes = (int) ((((double) total) - ((double) hours)) * 60d);

    calendar.set(Calendar.HOUR_OF_DAY, 12);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    calendar.set(Calendar.MILLISECOND, 0);

    calendar.add(Calendar.HOUR_OF_DAY, -hours / 2);
    calendar.add(Calendar.MINUTE, -minutes / 2);
    calendar.add(Calendar.MINUTE, (int) localSolarTime(day));

    final TimeZone timeZone = TimeZone.getDefault();

    if (timeZone.inDaylightTime(date)) {
        calendar.add(Calendar.MILLISECOND, timeZone.getDSTSavings());
    }

    return calendar.getTime();
}

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From source file:com.autodomum.daylight.algorithm.DaylightAlgorithm.java

@Override
public Date sunset(final Coordinate coordinate, final Date date) {
    final Calendar calendar = GregorianCalendar.getInstance();
    calendar.setTime(date);//w ww  . ja  v  a 2 s .  c o  m

    final int day = calendar.get(Calendar.DAY_OF_YEAR);

    final double total = length(coordinate.getLatitude(), day);

    final int hours = (int) total;
    final int minutes = (int) ((((double) total) - ((double) hours)) * 60d);

    calendar.set(Calendar.HOUR_OF_DAY, 12);
    calendar.set(Calendar.MINUTE, 0);
    calendar.set(Calendar.SECOND, 0);
    calendar.set(Calendar.MILLISECOND, 0);

    calendar.add(Calendar.HOUR_OF_DAY, hours / 2);
    calendar.add(Calendar.MINUTE, minutes / 2);
    calendar.add(Calendar.MINUTE, (int) localSolarTime(day));

    final TimeZone timeZone = TimeZone.getDefault();

    if (timeZone.inDaylightTime(date)) {
        calendar.add(Calendar.MILLISECOND, timeZone.getDSTSavings());
    }

    return calendar.getTime();
}

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From source file:com.haulmont.cuba.core.global.TimeZones.java

/**
 * @return short string representation of the given time zone
 *///from ww w.j a v a 2s  . com
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) + ")";
}

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From source file:com.synelixis.xifi.AuthWebClient.AToken.java

private Date getGMTime() {
    Calendar c = Calendar.getInstance();
    System.out.println("current: " + c.getTime());

    TimeZone z = c.getTimeZone();
    int offset = z.getRawOffset();
    if (z.inDaylightTime(new Date())) {
        offset = offset + z.getDSTSavings();
    }/*from  w  ww  . j a v  a  2s.c  om*/
    int offsetHrs = offset / 1000 / 60 / 60;
    int offsetMins = offset / 1000 / 60 % 60;
    c.add(Calendar.HOUR_OF_DAY, (-offsetHrs));
    c.add(Calendar.MINUTE, (-offsetMins));
    return c.getTime();

}

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