Java Utililty Methods Date UTC Format

List of utility methods to do Date UTC Format

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Description

The list of methods to do Date UTC Format are organized into topic(s).

Method

DateFormatcreateUTCDateFormatter(String dateFormat)
Creates a DateFormat that assumes the incoming date is in UTC time. 
DateFormat formatter = new SimpleDateFormat(dateFormat);
formatter.setTimeZone(TimeZone.getTimeZone("UTC"));
return formatter;
StringFormatAsUtc(Date date)
Format As Utc 
SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
f.setTimeZone(TimeZone.getTimeZone("UTC"));
return f.format(date);
StringformatAsUTC(java.util.Date date, String pattern)
format: returns the formatted date as String. 
if (date != null) {
    SimpleDateFormat sdf = new SimpleDateFormat(pattern);
    sdf.setTimeZone(getUTCTimeZone());
    return sdf.format(date);
} else {
    return null;
StringformatDate(Date date, String pattern, boolean toUTC)
Format date to string using specified pattern. 
DateFormat df = new SimpleDateFormat(pattern);
if (toUTC) {
    TimeZone tz = TimeZone.getTimeZone("UTC");
    df.setTimeZone(tz);
return df.format(date);
StringformatTimeStamp(byte[] btValue, int iOffset, int iLength, int iUtcOffset)
format Time Stamp 
if ((btValue.length < iOffset + iLength) || (iLength < 9))
    return "";
Date dtReturn = null;
long lOffset = 0;
if (btValue[iOffset + 2] == '+' || btValue[iOffset + 2] == '-') {
    dtReturn = new Date(getBCDValue(btValue[iOffset + 8]), getBCDValue(btValue[iOffset + 7]) - 1,
            getBCDValue(btValue[iOffset + 6]), getBCDValue(btValue[iOffset + 5]),
            getBCDValue(btValue[iOffset + 4]), getBCDValue(btValue[iOffset + 3]));
...
StringformatUTC(Date date, String format)
format UTC 
SimpleDateFormat sdf = new SimpleDateFormat(format);
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
return sdf.format(date);
StringformatUtcDateIfNotNull(final Date date)
format Utc Date If Not Null 
if (null == date) {
    return null;
final SimpleDateFormat dateFormat = new SimpleDateFormat(ISO8601_DATE_FORMAT_PATTERN);
dateFormat.setTimeZone(TimeZone.getTimeZone(UTC));
String formattedDate;
formattedDate = dateFormat.format(date);
return formattedDate;
...
StringformatUtcTime(long tval)
format Utc Time 
SimpleDateFormat utcSdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
utcSdf.setTimeZone(new SimpleTimeZone(0, "UTC"));
String stg = utcSdf.format(tval);
return stg;
StringgetStrTimeByUTC(long utc, String format)
get Str Time By UTC 
return new SimpleDateFormat(format).format(new Date(utc));
SimpleDateFormatgetUTCDateFormat()
get UTC Date Format 
SimpleDateFormat iso8601DateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
iso8601DateFormat.setTimeZone(TimeZone.getTimeZone(UTC_STR));
return iso8601DateFormat;