WooCommerce Show Sale Price Dates On Product Page

Pre-Requisites

There are no pre-requisites in order for you to be able to implement this solution.

How To Implement This Solution?

Simply copy the pre-coded solution to your active theme’s functions.php or preferably the Code Snippets Plugin.

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About This Solution

This snippet allows you to show the date range a product is on sale if you had set a sale price in the editor.

/**
 * Snippet Name:	WooCommerce Display Sale Price Dates
 * Snippet Author:	ecommercehints.com
 */

add_filter( 'woocommerce_get_price_html', 'ecommercehints_display_sale_price_dates', 100, 2 );
function ecommercehints_display_sale_price_dates( $price, $product ) {
    $sales_price_from = get_post_meta( $product->id, '_sale_price_dates_from', true );
    $sales_price_to   = get_post_meta( $product->id, '_sale_price_dates_to', true );
    if ( is_product() && $product->is_on_sale() && $sales_price_to != "" ) {
        $sales_price_date_from = date( "l jS F", $sales_price_from );
        $sales_price_date_to   = date( "l jS F", $sales_price_to );
        $price .= "<br><small>Sale from " . $sales_price_date_from . ' to ' . $sales_price_date_to . "</small>";
	}
    return $price;
}

Snippet Benefits

If a product is on sale, and you have scheduled dates the sale begins and ends, display the date range of the sale under the price on the single product template.
Make is super clear to customers the your store is going to end the sale, therefore encouraging them to buy now with urgency.