CREATE TABLE table_30841 ("Age" FLOAT, "Date" CLOB, "Track" CLOB, "Race" CLOB, "Distance  ( miles ) " CLOB, "Jockey" CLOB, "Handicap" CLOB, "Field  ( No. horses ) " CLOB, "Place" CLOB, "Time" CLOB, "Prize Money" CLOB, "+ Sweepstake" CLOB, "Archerpars_m_singles winnings" CLOB)

On what date was the handicap 8 st 12 lb?
SELECT "Date" FROM table_30841 WHERE "Handicap" = '8 st 12 lb'
SELECT "Date" FROM "table_30841" WHERE "Handicap" = '8 st 12 lb'