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Re: Off topic: dateTime formatting in Java

• To: xml-dev@l...
• Subject: Re: Off topic: dateTime formatting in Java
• From: Pete Forman <pete.forman@w...>
• Date: 05 Nov 2003 10:56:03 +0000
• Organization: WesternGeco, Gatwick, UK
• References: <3FA7459D.9050003@i...> <3cd4p4dr.fsf@w...>
• Sender: news <news@s...>
• User-agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.4 (Military Intelligence (RC5 Windows))

Jochen Wiedmann <joe@i...> writes:
 > [looking for Java to generate ]
 > instances of xs:dateTime are formatted like
 > 
 >      1999-05-31T13:20:00-05:00

My previous code fragment did UTC.  This does local time as per the
original request.

import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

    Date now = new Date();
    DateFormat ISO8601Local = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
    TimeZone timeZone = TimeZone.getDefault();
    ISO8601Local.setTimeZone(timeZone);
    int offset = timeZone.getOffset(now.getTime());
    String sign = "+";
    if (offset < 0) {
      offset = -offset;
      sign = "-";
    }
    int hours = offset / 3600000;
    int minutes = (offset - hours * 3600000) / 60000;
    if (offset != hours * 3600000 + minutes * 60000) {
      // E.g. TZ=Asia/Riyadh87
      throw new RuntimeException("TimeZone offset (" + sign + offset +
                                 " ms) is not an exact number of minutes");
    }
    DecimalFormat twoDigits = new DecimalFormat("00");
    String ISO8601Now = ISO8601Local.format(now) + sign +
      twoDigits.format(hours) + ":" + twoDigits.format(minutes);


-- 
Pete Forman                -./\.-  Disclaimer: This post is originated
WesternGeco                  -./\.-   by myself and does not represent
pete.forman@w...    -./\.-   opinion of Schlumberger, Baker
http://petef.port5.com           -./\.-   Hughes or their divisions.

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    • From: Jochen Wiedmann <joe@i...>
  • Re: Off topic: dateTime formatting in Java
    • From: Pete Forman <pete.forman@w...>

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