Converting a string to a datetime array for the 29th February
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When I enter the following code:
a = 'Feb 29 08:59:21';
t = datetime(a,'InputFormat','MMM dd HH:mm:ss');
I receive an error:
-------------------------------
Error using datetime (line 635)
Unable to convert 'Feb 29 08:59:21' to datetime using the format 'MMM dd HH:mm:ss'. If the date/time text contains day, month, or time zone names in a
language foreign to the 'en_US' locale, those might not be recognized. You can specify a different locale using the 'Locale' parameter.
-------------------------------
If I use:
a = 'Feb 28 08:59:21';
t = datetime(a,'InputFormat','MMM dd HH:mm:ss');
This works fine.
I assume this has something to do with there being no year specified and the 29th February only happening on a leap year?
Michael.
5 comentarios
Peter Perkins
el 13 de Dic. de 2022
Michael, the error msg you got is correct, but not all that helpful. We are definitely aware of that, and it will improve at some point.
Also, notice that while
% datetime("29-Feb-2022")
is an error,
datetime(2022,2,29)
is not. Why is that? Because you'd want
t = datetime(2022,2,1:60);
t([1 end])
to work. That has a legitimate use case. There's no legitimate use for "29-Feb-2022", no software should ever be creating that timestamp for import into MATLAB.
Respuestas (1)
Dongyue
el 15 de Dic. de 2022
If you do not specify the year, MATLAB will automatically view it as the current year. Since 2022 is not a leap year, you will get an error if you want to use datetime for Feb 29th.
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