functions.php<\/code>, which costs nothing and gives you complete control. Or you can use a plugin and skip the maintenance. This guide covers both \u2014 the code method first, because you should know what you are replacing before you install anything.<\/p>\n\n\n\nOption A: Skip weekends and holidays with a functions.php snippet<\/h2>\n\n\n\n
This is the no-plugin route. Add the following to your child theme’s<\/strong> functions.php<\/code> (never the parent theme \u2014 a theme update will wipe it) or to a code snippets plugin. It walks forward day by day, skipping Saturdays, Sundays and any date on your holiday list, then prints the result on the single product page.<\/p>\n\n\n\n<?php\n\/**\n * Show an estimated delivery date on the single product page,\n * skipping weekends and a defined holiday list.\n *\n * Add to your child theme's functions.php.\n *\/\nadd_action( 'woocommerce_single_product_summary', 'qsd_show_delivery_estimate', 25 );\n\nfunction qsd_show_delivery_estimate() {\n\n\t$business_days = 3; \/\/ Working days to add.\n\n\t\/\/ Fixed dates (Y-m-d) and recurring dates (m-d, any year).\n\t$fixed_holidays = array( '2026-11-26', '2026-07-03' );\n\t$recurring_holidays = array( '12-25', '01-01' );\n\n\t$date = new DateTime( 'now', wp_timezone() );\n\t$added = 0;\n\n\t\/\/ Hard stop so a bad holiday list can never loop forever.\n\t$guard = 0;\n\n\twhile ( $added < $business_days && $guard < 365 ) {\n\t\t$guard++;\n\t\t$date->modify( '+1 day' );\n\n\t\t\/\/ ISO-8601: 6 = Saturday, 7 = Sunday.\n\t\tif ( (int) $date->format( 'N' ) >= 6 ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tif ( in_array( $date->format( 'Y-m-d' ), $fixed_holidays, true ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tif ( in_array( $date->format( 'm-d' ), $recurring_holidays, true ) ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\t$added++;\n\t}\n\n\tprintf(\n\t\t'<p class=\"qsd-delivery-estimate\">%1$s <strong>%2$s<\/strong><\/p>',\n\t\tesc_html__( 'Estimated delivery:', 'your-textdomain' ),\n\t\tesc_html( date_i18n( get_option( 'date_format' ), $date->getTimestamp() ) )\n\t);\n}<\/code><\/pre>\n\n\n\nA few things worth understanding about this snippet:<\/p>\n\n\n\n
\nwp_timezone()<\/code> matters.<\/strong> It returns your store’s configured timezone rather than the server’s. Without it, a store on a US host serving European customers can show a date that is a full day out.<\/li>\n\n- The
m-d<\/code> array handles recurring holidays.<\/strong> Christmas and New Year’s Day never need updating. Only movable holidays like Thanksgiving go in the fixed array.<\/li>\n\n- Priority 25<\/strong> places the estimate after the price and before the add-to-cart button. Lower the number to move it up, raise it to move it down.<\/li>\n\n
- The
$guard<\/code> counter<\/strong> is not decoration. If someone fills the holiday array with every weekday, an unguarded loop runs forever and takes the product page down with it.<\/li>\n<\/ul>\n\n\n\nShowing the same estimate in the cart and checkout<\/h3>\n\n\n\n
The snippet above only covers the product page. To repeat the estimate at checkout, hook the same calculation to a checkout action \u2014 refactor the date logic into its own function first so you are not maintaining two copies:<\/p>\n\n\n\n
<?php\nadd_action( 'woocommerce_review_order_before_submit', 'qsd_checkout_delivery_estimate' );\n\nfunction qsd_checkout_delivery_estimate() {\n\techo '<p class=\"qsd-checkout-estimate\">';\n\tesc_html_e( 'Your order should arrive by the date shown on each product page.', 'your-textdomain' );\n\techo '<\/p>';\n}<\/code><\/pre>\n\n\n\nWhere the code method runs out of road<\/h3>\n\n\n\n
The snippet is genuinely fine for a simple store with one dispatch schedule. It starts to hurt when you need per-shipping-method windows, an order cutoff time that rolls the estimate to the next day, per-product processing times, variable products where each variation ships differently, or the block-based cart and checkout, which ignores the classic hooks above entirely. At that point you are maintaining a small plugin inside your theme, and it is worth using an actual one.<\/p>\n\n\n\n
Option B: Do it in the plugin settings<\/h2>\n\n\n\n
The rest of this tutorial shows how to configure QuickShipD to exclude weekends and recurring holidays automatically. It covers the edge cases the snippet does not, and takes about 3 minutes.<\/em> If you want the full feature list first, see QuickShipD estimated delivery dates<\/a>.<\/p>\n\n\n\n
![\"exclude](\"https:\/\/quickshipd.com\/blog\/wp-content\/uploads\/2026\/04\/exclude-weekends-1024x999.jpg\")
<\/figure>\n\n\n\n![\"non](\"https:\/\/quickshipd.com\/blog\/wp-content\/uploads\/2026\/04\/non-delivery.jpg\")
<\/figure>\n\n\n\n![\"QuickShipD](\"https:\/\/quickshipd.com\/blog\/wp-content\/uploads\/2026\/04\/holidays-1.png\")
<\/figure>\n\n\n\n