carbon-fields-block.php

<?php
Container::make( 'block', 'Flight Details' )
    ->add_fields( [
        Field::make( 'text', 'crb_from', 'From' ),
        Field::make( 'text', 'crb_to', 'To' ),
        Field::make( 'date_time', 'crb_departure_time', 'Departure Time' ),
        Field::make( 'date_time', 'crb_arrival_time', 'Arrival Time' ),
        Field::make( 'text', 'crb_duration', 'Duration' ),
    ]) 
    ->set_block_render_function(function ($flight) {
        $format = 'm d, H:i(Y)';
        $departure = date($format, strtotime($flight->departure_time));
        $arrival = date($format, strtotime($flight->arrival_time));
        ?>
        <section class="flight">
            <h2>Flight from <?php echo esc_html($flight->from) ?> to <?php echo esc_html($flight->to) ?></h2>
            <p class="flight__departure">Departure: <?php echo $departure ?></p>
            <p class="flight__arrival">Arrival: <?php echo $arrival ?></p>

            <p class="flight__duration"><?php echo esc_html($flight->duation) ?></p>
        </section>
        <?php
    });