How can I set my moms sundial I got her for Christmas to daylight savings time ?

Ask on Google how to. It is known as Google it. 

Ask the company you bought it from.

By adjusting the time on it to the present time (we sprung forward an hour). 

By springing the hour forward by an hour. 

You can't.  It's a sundial, and follows the sun.  Solar time is different from other sorts of time scales.

It's not the sundial that tells you the time, it's your knowledge of telling time the sundial is used to tell time.

use ur asehol or dick now get off my wall before you are on here asking about getting new dentures. under stand me boy?

Twist it slightly