Name	Notation	Description	Types	Status
Year	1		Concept	stable
Month	2		Concept	stable
Day	3		Concept	stable
Hour	4		Concept	stable
Minute	5		Concept	stable
Second	6		Concept	stable
Seconds within a minute (microsecond accuracy)	7		Concept	stable
Time increment	11		Concept	stable
Time increment	12		Concept	stable
Time increment	13		Concept	stable
Time increment	14		Concept	stable
Time increment	15		Concept	stable
Time increment	16		Concept	stable
Reference time period for accumulated or extreme data	17		Concept	stable
Time period or displacement	21		Concept	stable
Time period or displacement	22		Concept	stable
Time period or displacement	23		Concept	stable
Time period or displacement	24		Concept	stable
Time period or displacement	25		Concept	stable
Time period or displacement	26		Concept	stable
Duration of time relating to following value	31		Concept	stable
Duration of time relating to following value	32		Concept	stable
Time difference, UTC - LMT	41		Concept	stable
Day of the year	43		Concept	stable
Principal time of daily reading of maximum temperature	51		Concept	stable
Principal time of daily reading of minimum temperature	52		Concept	stable
Number of days with precipitation equal to or more than 1 mm	53		Concept	stable
Times of observation used to compute the reported mean values	59		Concept	stable
Short time increment	65		Concept	stable
Short time increment	66		Concept	stable
Short time period or displacement	73		Concept	stable
Short time period or displacement	74		Concept	stable
Short time period or displacement	75		Concept	stable
Averaging period for following value	80		Concept	stable
Long time period or displacement	86		Concept	stable