WMO Code table 4 - Unit of time



Code figure	Meaning
0	Minute
1	Hour
2	Day
3	Month
4	Year
5	Decade (10 years)
6	Normal (30 years)
7	Century (100 years)
8-9	Reserved
10	3 hours
11	6 hours
12	12 hours
13-253	Reserved
254	Second




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