constructing a time variable in matlab

2019 1 31
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更新时间：2019 1 31
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Dear all,
I have a matrix
data= [9 30 0
9 30 0
9 30 0
9 30 0
9 30 0
9 30 1
9 30 1
9 30 1
9 30 1
9 30 1];
The first colum is the hour, the second column is the minute and the third column is second
I want to merge these 3 columns so as to construct a time variable as follows
datanew= [9.300
9.300
9.300
9.300
9.300
9.301
9.301
9.301]
;
How Can I do that in matlab? Is there any code?

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KSSV
KSSV 2019-1-31
编辑：KSSV 2019-1-31

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Read about duration
iwant = duration(data) ;
Or you can simply use:
iwant = data(:,1)+data(:,2)/100+data(:,3)/1000

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