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