Using variables in Out of office message End Time

Hi,

in OOF assistant of Outlook 2013 i can set Automatic replies between start time and end time.

My usual message would be "I will reply on your message on xx.xx.xxxx". I have to type/copy the end time value every time I turn OOF on.

Is there a variable I can use , like "I will reply on your message on #EndTime#"?

Or any settings or templates I can change on the Exchange 2010 server?

Thank you.