Email service that will reply with emails after a certain amount of time [closed]

Email service that will reply with emails after a certain amount of time [closed]

Is there a service which I can send an email to, with the first words in the body as '2 weeks' or '13th may 2010' or 'in half an hour' and it will reply with an email in the specified time or at the specified date, ie in 2 weeks or on 13th may 2010 or in half an hour?