return the utc date and time in w3c format down to second yyyy-mm-ddthh : mm : ssz . i.e. : 1997-07-16t19:20:30z concode_field_sep String[] W3CDATETIME_MASKS concode_elem_sep TimeZone UTC concode_field_sep boolean isDSTChangeDay concode_elem_sep String formatDateUTC concode_elem_sep String formatDateUTC concode_elem_sep DateFormat getISO8601DateFormat concode_elem_sep TimeZone getTimeZone concode_elem_sep java.util.Date toDate concode_elem_sep Timestamp convertDateToTimestamp concode_elem_sep Date parseDateUTC concode_elem_sep Calendar getCalendar concode_elem_sep Calendar getCalendar concode_elem_sep void moveToEnd concode_elem_sep Date parseUsingMask concode_elem_sep int hoursInDay