Dynamically render matrix like form in Django

Question

I am using a Django model to represent day-hour combinations. The goal is to render a matrix-like form with the days on the x-axis and the hours on the y-axis. The user can check each combination to define when a vehicle is available during a week.

The model looks as follows:

class TimeMatrix(models.Model):
    MO00 = models.BooleanField(default=False)
    MO01 = models.BooleanField(default=False)
    MO02 = models.BooleanField(default=False)
    MO03 = models.BooleanField(default=False)
    ....
    SO22 = models.BooleanField(default=False)
    SO23 = models.BooleanField(default=False)

I like to render the corresponding form coming from the CreateView as the mentioned matrix. The html to do this requires a list of days = ['MON', 'TUE', ..., 'SUN'] and hours = ['00', '01', ..., '23'] in order to render the form dynamically. The following html shows this without using the form the Django CreateView provides:

<form action="#">
    <div class="table-responsive">
    <table class="table">
            <thead class="thead-light">
                <tr>
                    <th scope="col">Day</th>
                    {% for h in hours %}
                    <th scope="col">{{h}}</th>
                    {% endfor %}
                </tr>
            </thead>
            <tbody>
                {% for d in days %}
                <tr>
                    <th scope="row" class="wt-col">{{d}}</th>
                    {% for h in hours %}
                    <td><input type="checkbox" name="{{d}}{{h}}" value="{{d}}{{h}}" id="id_{{d}}{{h}}"></td>
                    {% endfor %}
                </tr>
                {% endfor %}
            </tbody>
        </table>
    </div>
</form>

Since I like to use the security measures build into Django forms I like this to make use of the form the CreateView provides. Following this explanation, the individual form can be accessed using form.<field_name>. Combining this with the html would require a dynamic way to access the form fields, which for me raises two questions:

1. Following this advice I was able to implement getattr functionality for the templates which works with my models, but fails on the form the CreateView provides (e.g. {{form|getattribute:'MON00'}}). What am I missing?
2. Since I cannot concat the day and hour string in the template ({{form|getattribute:d+h}} will not work), what is a suitable way to access the required form field?