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How to convert time stamp 11:21:17.155 into seconds in MATLAB??

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I am quite not sure how to covert time stamps of this sort into seconds in MATLAB. Any help is appreciated.
Thank you
  2 Comments
Stephen Cobeldick
Stephen Cobeldick on 19 Jan 2021
a = '11:21:17.155';
b = [60*60,60,1]*str2double(split(a,':'))
b =
40877.155

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Accepted Answer

Stephan
Stephan on 19 Jan 2021
format longG
a = '11:21:17.155';
b = seconds(duration(a,'InputFormat','hh:mm:ss.SSS'))
results in:
b =
40877.155

More Answers (1)

Stephen Cobeldick
Stephen Cobeldick on 19 Jan 2021
The most efficient solution:
a = '11:21:17.155';
b = [60*60,60,1]*sscanf(a,'%f:')
b =
40877.155

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