SimpleTimeTracker/app/templates/forms/entry_edit.html

{% load crispy_forms_tags %}

<form action="{% url 'edit_entry' entry_id=entry.uid %}" method="post">
    <div class="row">
        <div class="col-sm-12 col-md-4">
            <label class="form-label" for="day_of_month">Day of month*</label>
            <select id="day_of_month" name="day_of_month" class="form-control form-control-lg {% if form.day_of_month.errors %}is-invalid{% endif %}">
                <option value="Blank">---</option>
                {% for day in days_of_month %}
                    {% if selected_day == day.day %}
                        <option value="{{ day.day }}" selected>{{ day.label }}</option>
                    {% else %}
                        <option value="{{ day.day }}">{{ day.label }}</option>
                    {% endif %}
                {% endfor %}
            </select>
            {% if form.day_of_month.errors %}
                {% for error in form.day_of_month.errors %}
                    <p class="invalid-feedback"><strong>{{ error }}</strong></p>
                {% endfor %}
            {% endif %}
        </div>
        <div class="col-sm-12 col-md-4">
            {{ form.hours | as_crispy_field }}
        </div>
        <div class="col-sm-12 col-md-4">
            {{ form.minutes | as_crispy_field }}
        </div>
        <div class="col-sm-12 col-md-4">
            <label class="form-label">&nbsp;</label>
            <input type="submit" value="Submit" class="form-control form-control-lg btn btn-lg btn-dark">
        </div>
        {% csrf_token %}
    </div>
</form>