<prompt> Translate the following text to EnglishSehemu hii inakadiria gharama ya utoaji wa kazi ya posta inayolingana na vitengo vya wakati ili kubadilisha wakati kuwa pesa katika sehemu zilizofuata.  <response>: This section estimates postal labor delivery cost that corresponds to units of time in order to convert time into money in subsequent sections. 