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

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

Answer 1

[Walter Roberson]

    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

and now you have a duration relative to the beginning of the day.