private Date computeAdjustedTime(Date initialDate, TimeZone targetTZ, boolean adjustToDayStart) {
Calendar cal = Calendar.getInstance();
cal.setTime(initialDate);
TimeZone localTZ = cal.getTimeZone();
int timezoneOffset = cal.get(Calendar.ZONE_OFFSET);
if (localTZ.inDaylightTime(initialDate)) {
timezoneOffset += (60 * 60 * 1000);
}
cal.add(Calendar.MILLISECOND, timezoneOffset);
Date newTime = cal.getTime();