Thetranslationof"春宵苦短日高起从此君王不早朝"is:Springnightsareshort,thesunriseshigh,fromthismomenton,themonarchwillnolongerriseearlyforcourt.
The translation of "春宵苦短日高起从此君王不早朝" is:
Spring nights are short, the sun rises high, from this moment on, the monarch will no longer rise early for court.