sap時區相關

時區表：TTZZ

function：

TZON_GET_OS_TIMEZONE    -  returns the timezone of your machine, then use it in

ISU_DATE_TIME_CONVERT_TIMEZONE - return your local time.

sap help：

http://help.sap.com/saphelp_470/helpdata/en/fe/1ddeac104311d3a54f444553540000/content.htm