When you place an order before 12 pm, your package will be packed and shipped on the same day. Normally it will be delivered the day after (in the Netherlands).
When you placed your order after 12 pm, during the weekend or on Dutch official holidays, your order will be shipped on the next working day and will be delivered the day after it is shipped.
Keep in mind that during holidays and busy times at the carriers, it may take a little longer for your package to be delivered.