how to convert '10:00 AM' to datetime?

Question

Yu Li 2022-2-16

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1651745-how-to-convert-10-00-am-to-datetime

回答： Walter Roberson 2022-2-17

采纳的回答： Walter Roberson

Hi:

I have a string '10:30 AM', I want to convert it to time using 'datetime' but failed, is there any way to do that?

I tried to specify the format using command below but still failed:

datetime('10:30 AM','InputFormat','HH:MM')

Thanks!

Yu

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Answer 1

Walter Roberson 2022-2-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1651745-how-to-convert-10-00-am-to-datetime#answer_898030

在 MATLAB Online 中打开

    datetime('10:30 AM','InputFormat','hh:mm a')
ans = datetime
   17-Feb-2022 10:30:00

Notice how the current day is automatically used. MATLAB does not have any datatype for pure clock time without a date: it has datetime (that can be configured to display nor not display the date or seconds or whatever even though they are stored); and it has duration() objects that are purely relative objects with no date or absolute hour, just elapsed time.

You can do

    temp = datetime('10:30 AM','InputFormat','hh:mm a')
temp = datetime
   17-Feb-2022 10:30:00
    day_relative = temp - dateshift(temp, 'start', 'day')
day_relative = duration
   10:30:00