How to make a for - if loop using datetime arrays in matlab?

I have a datetime array with sunrise hour (whole_set_sr), a datetime array with sunset hour (whole_set_ss), and a datetime array with lots with whole calendar data (tm_whole_date). All of them have the same number of elements, so position 1 should be tested against position 1, position 2 should be tested with position 2 and so on..

I am trying to create a binary array with the same number of elements, in which it returns 1 if the element in tm_whole_date is >= the sun rise hour (whole_set_sr) AND <= the sun set hour (whole_set_ss), and 0 if it is out of the these conditions.

I have attempted the following:

    date_list = [];
date_indexes = [];
numel(whole_date)

for i = 1:numel(tm_whole_date)
    if (tm_whole_date(i,1) >= whole_set_sr(i,1)) && tm_whole_date(i,1) <= whole_set_ss(i,1)
            bin_x = 1
    else
        bin_x = 0
    end

    date_list(i) = bin_x
end

It is giving me an array (date_list) full of zeros when there should be values meeting the condition and returning 1.

Also, I need to create a list with the indexes of the positions of 1 values in the whole set of datetime tm_whole_date . (to know based on indexes which elements meet the criteria).

I dont know what it going wrong here and I would appreciate very much some help.

Thanks!