Month function doesn't work with double anymore

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I have just updated to 2019a. My scripts have worked previously 2018 version and now they do not. I am recieving an error message,
"Undefined function 'month' for input arguments of type 'double'." I have not made any changes to my scripts between matlab software version change.
Any idea what is happening?

Accepted Answer

Star Strider
Star Strider on 27 Mar 2019
From the documentation:
m = month(t) returns the month numbers of the datetime values in t. The m output contains integer values from 1 to 12.’
It appears only to work with datetime variables.
Eric Escoto
Eric Escoto on 27 Mar 2019
I worked around by calling the datevec associated with the double array. Works perfectly now.
Thanks for the quick response!
Star Strider
Star Strider on 27 Mar 2019
As always, my pleasure!
I was going to suggest using datevec if you’re working with datenum format variables.

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