Casio G shock atomic watch and DST?

Can anyone tell me,step by step,how to reset my Casio G shock digital atomic watch? I thought these atomic watches were supposed to set them selves when we spring forward or fall back but it doesn't. Now I can't remember how to manually set the son of a gun. This watch has the "adjust" button on the upper left, the "time memo" button on the upper right, the "mode" on the lower left and the "receive" on the lower right. Please anyone I really depend on this watch.