https://help.sap.com/doc/abapdocu_750_index_htm/7.50/en-US/abapcompute_string_format_options.htm
DATA(l_date) = |{ sy-datum COUNTRY = 'DE ' }| "result 01.01.2020
DATA(l_time) = |{ sy-uzeit COUNTRY = 'DE ' }| "result 08:00
"another way
DATA(l_date) = |{ sy-datum DATE = ENVIRONMENT }|.
DATA(l_time) = |{ sy-uzeit TIME = ENVIRONMENT }|.