year_to_dst_dates(_c)

	status.i4.v = year_to_dst_dates_c(year.i4.v, first_dst_date.u4.r,
					  first_dst_tm.s.r, last_dst_date.u4.r,
					  last_dst_tm.s.r)

	This routine returns the beginning and ending DST dates
	for a given year.

	year		requested year
			(If a value of 0 is passed for this argument,
			 the current year is used.)
	first_dst_date	returned first DST date in clinks
	first_dst_tm	returned first DST date structure
			(structure of type struct tm)
	last_dst_date	returned last DST date in clinks
	last_dst_tm	returned last DST date structure
			(structure of type struct tm)

	This function returns ACNET status values as follows:

	OK			success
	CBS_RANGE		year is out of range

	This function requires the following include files:

	clib_h, acnet_errors_h

	Related functions:

	clinks_to_date, date_to_clinks, clinks_now, clinks_to_year_c,
	clinks_to_day_of_week_c, get_date_clinks,
	convert_compare_date_to_clinks db_date_to_clinks,
	clinks_is_dst_c, db_date_to_date_c, convert_seconds_c,
	clinks_to_special_time_c, utc_seconds_to_date_c,
	clinks_to_seconds_into_day_c, timezone_info

	C/C++ usage:

	int	status;
	int	year = 0;
	unsigned int	first_dst_date;
	unsigned int	last_dst_date;
	struct tm	first_dst_tm;
	struct tm	last_dst_tm;

	status = year_to_dst_dates_c(year,&first_dst_date,&first_dst_tm,
				     &last_dst_date,&last_dst_tm);