Formatted Date and Time Shortcode

<?php
/**
 * Usage: [current_date]
 * Optional: [current_date format="F j, Y"] or [current_date format="H:i"]
 * Accepts any PHP date() format string. Defaults to the site's Date Format setting.
 */
add_shortcode( 'current_date', 'scseed_formatted_date_shortcode' );
function scseed_formatted_date_shortcode( $atts ) {
    $atts = shortcode_atts(
        array( 'format' => get_option( 'date_format' ) ),
        $atts,
        'current_date'
    );
    // Sanitize: allow only safe date-format characters
    $format = sanitize_text_field( $atts['format'] );
    return esc_html( wp_date( $format ) );
}