Removing part of a cell array

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Brian Gregory 2021-6-16

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评论： Walter Roberson 2021-6-16

Hello.

I have a data table 1441x1 reading as a cell. The data in this cell is "06/15/2021 12:00 AM" and changes in time by the minute to make up the 1441x1 cell.

My goal is to be left with an array of only the times, as such "12:00" "12:01"... and so on. Any help is appreciated.

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Walter Roberson 2021-6-16

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Why not just convert as-is ?

S = '06/15/2021 12:00 AM'
S = '06/15/2021 12:00 AM'
datetime(S, 'InputFormat', 'MM/dd/yyyy hh:mm a', 'Format', 'yyyy/MM/DD HH:mm')
ans = datetime
   2021/06/166 00:00

Note the InputFormat uses hh, which is the code for 12-hour numbering format. The 'a' field accepts AM or PM and informs MATLAB of which 12 hour block.

The OutputFormat I coded to use HH which is the code for 24-hour numbering format.