Example usage for java.util TimeZone getDefault

Introduction

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

Prototype

public static TimeZone getDefault()

Source Link

Document

Gets the default TimeZone of the Java virtual machine.

Usage

From source file:Main.java

@SuppressLint("SimpleDateFormat")
static String setTime() {
    // add DateTime to filename
    Calendar cal = Calendar.getInstance(TimeZone.getDefault());
    Date currentLocalTime = cal.getTime();
    SimpleDateFormat date = new SimpleDateFormat("HH-mm-ss");
    date.setTimeZone(TimeZone.getDefault());
    _currentTime = date.format(currentLocalTime);

    return _currentTime;
}

From source file:Main.java

/**
 * getDateAsString//www  .j  ava 2 s.  c  om
 * Convert a date into a string
 *
 * @param date   the date
 * @param format the format in which to return the string
 * @return the new formatted date string
 */
public static String getDateAsString(Date date, String format, String timezone) {
    DateFormat formatter = new SimpleDateFormat(format, Locale.getDefault());
    if (timezone == null) {
        formatter.setTimeZone(TimeZone.getDefault());
    } else {
        formatter.setTimeZone(TimeZone.getTimeZone(timezone));
    }
    return formatter.format(date);
}

From source file:Main.java

public static String getGMTTimeString(long millisecond) {
    Calendar cal = Calendar.getInstance();
    int zoneOffsetTime = cal.get(Calendar.ZONE_OFFSET) + cal.get(Calendar.DST_OFFSET);
    long millisecondsUTC = millisecond - zoneOffsetTime;
    GMTTimeFormatter.setTimeZone(TimeZone.getDefault());
    String strGMTTime = GMTTimeFormatter.format(millisecondsUTC);
    return strGMTTime;
}

From source file:Main.java

public static long getLocalTime(String strLocalTime) {
    long millisecond = 0;
    try {/*  w ww. java 2s  .  c om*/
        LocalTimeFormatter.setTimeZone(TimeZone.getDefault());
        millisecond = LocalTimeFormatter.parse(strLocalTime).getTime();
    } catch (ParseException e) {
        e.printStackTrace();
    }
    return millisecond;
}

From source file:Main.java

/**
 * Since all dates from the database are in UTC, we must convert the local date to the date in
 * UTC time. This function performs that conversion using the TimeZone offset.
 *
 * @param localDate The local datetime to convert to a UTC datetime, in milliseconds.
 * @return The UTC date (the local datetime + the TimeZone offset) in milliseconds.
 *//*from w  ww  .  j av  a2s . c o m*/
public static long getUTCDateFromLocal(long localDate) {
    TimeZone tz = TimeZone.getDefault();
    long gmtOffset = tz.getOffset(localDate);
    return localDate + gmtOffset;
}

From source file:Main.java

public static String getTimeRemaining(long durationInMilliseconds) {
    SimpleDateFormat sdf;//from ww w  . j  a  v a  2  s  .  c o  m
    if (durationInMilliseconds > 1000 * 60 * 60) {
        sdf = new SimpleDateFormat("HH:mm", Locale.getDefault());
    } else {
        sdf = new SimpleDateFormat("mm:ss", Locale.getDefault());
    }
    return sdf.format(new Date(durationInMilliseconds - TimeZone.getDefault().getRawOffset()));
}

From source file:Main.java

/**
 * Since all dates from the database are in UTC, we must convert the given date
 * (in UTC timezone) to the date in the local timezone. Ths function performs that conversion
 * using the TimeZone offset.//from   w  ww . j  a  v  a2  s.c  o m
 *
 * @param utcDate The UTC datetime to convert to a local datetime, in milliseconds.
 * @return The local date (the UTC datetime - the TimeZone offset) in milliseconds.
 */
public static long getLocalDateFromUTC(long utcDate) {
    TimeZone tz = TimeZone.getDefault();
    long gmtOffset = tz.getOffset(utcDate);
    return utcDate - gmtOffset;
}

From source file:Main.java

/**
 * This method will return the local time midnight for the provided normalized UTC date.
 *
 * @param normalizedUtcDate UTC time at midnight for a given date. This number comes from the
 *                          database//w w  w .  j a v a2s.co  m
 *
 * @return The local date corresponding to the given normalized UTC date
 */
private static long getLocalMidnightFromNormalizedUtcDate(long normalizedUtcDate) {
    /* The timeZone object will provide us the current user's time zone offset */
    TimeZone timeZone = TimeZone.getDefault();
    /*
     * This offset, in milliseconds, when added to a UTC date time, will produce the local
     * time.
     */
    long gmtOffset = timeZone.getOffset(normalizedUtcDate);
    long localMidnightMillis = normalizedUtcDate - gmtOffset;
    return localMidnightMillis;
}

From source file:com.baifendian.swordfish.common.utils.DateUtils.java

/**
 * ?
 */
public static String getDefaultTimeZome() {
    return TimeZone.getDefault().getID();
}

From source file:DateTimeUtil.java

/**
 * Return a String value of Now() in a specify format
 * @param lang lingua di default//w w w  .j  a  va2  s . com
 * @param format formato della data vedi esempi tsDefaultFormats
 * @return String value of Now() in a specify format
 */
public static final String getNowWithFormat(String format, String lang) {
    Calendar cal = Calendar.getInstance(TimeZone.getDefault());
    String DATE_FORMAT = format;
    SimpleDateFormat sdf = null;

    if (lang != null) {
        sdf = new SimpleDateFormat(DATE_FORMAT, new Locale(lang));
    } else {
        sdf = new SimpleDateFormat(DATE_FORMAT);
    }

    sdf.setTimeZone(TimeZone.getDefault());
    return sdf.format(cal.getTime());
}