&systime 这个是返回小时+分
&sysdate 这个是日期

It seems that &systime just return the time when the current sas section start. but not the current time.if you run &systime many times you will find that is a same value.
Sorry for typing in english because this computer no Chinese input.

Thank you.

那就是%sysfunc（time（））

thank jinlin2009
I get one solution but it seems not too smart:
%put %sysfunc(putn(%sysfunc(timepart(%sysfunc(DATETIME()))),time8));
does anyone have better idear?

Thanks

%put %sysfunc(putn(%sysfunc(datepart(%sysfunc(DATETIME()))),date9.));