生時是 x點多,換算成地支時辰: (23-1子時除外)
[(x-1)/2]+2 ([]為取整數)
ex1. 晚上6點多=18:** => [(18-1)/2]+2=8+2=10 (酉)
ex2. 早上8點多 =8:** => [(8-1)/2]+2=3+2=5 (辰)
ex3. 早上9點多=9:** => [(9-1)/2]+2=4+2=6 (巳)
[(x-1)/2]+2 ([]為取整數)
ex1. 晚上6點多=18:** => [(18-1)/2]+2=8+2=10 (酉)
ex2. 早上8點多 =8:** => [(8-1)/2]+2=3+2=5 (辰)
ex3. 早上9點多=9:** => [(9-1)/2]+2=4+2=6 (巳)
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