Convert Date String to/from ISO 8601 respecting UTC in Java

gistfile1.java

public static String toISO8601UTC(Date date) {
  TimeZone tz = TimeZone.getTimeZone("UTC");
  DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'");
  df.setTimeZone(tz);
  return df.format(date);
}

public static Date fromISO8601UTC(String dateStr) {
  TimeZone tz = TimeZone.getTimeZone("UTC");
  DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'");
  df.setTimeZone(tz);
  
  try {
    return df.parse(dateStr);
  } catch (ParseException e) {
    e.printStackTrace();
  }
  
  return null;
}

Thank you for this, very helpful.

Thank you for this, very helpful.

Thanks a lot !

+1
Thanks for the snippet

+1

Thanks for the gist

+1

Дякую

+1

Thank you!

Found this while googling "java date parse from utc". Other answers usually don't set timezone for SimpleDateFormat.

thank you very much

df.setTimeZone(...) thanks

Why we need to set timezone. Things are working perfectly without it.

Thanks, life saver. Someday I'll get my project off the Calendar/Date classes!

Гарно дякую)