public static String getThreadDefaultTzid() throws TimezonesException {
    final String id = threadTzid.get();

    if (id != null) {
      return id;
    }
    return getSystemDefaultTzid();
  }
public static String getThreadDefaultTzid ( ) throws TimezonesException { final String id = threadTzid . get ( ) ; if ( id != null ) { return id ; } return getSystemDefaultTzid ( ) ; }
Get the default timezone id for this thread.

@return String id
@throws TimezonesException on error