CREATE TABLE table_name_69 (pdt___7_utc_ VARCHAR, cdt___5_utc_ VARCHAR)

What is the time for PDT when CDT is 6:38 a.m.?
SELECT pdt___7_utc_ FROM table_name_69 WHERE cdt___5_utc_ = "6:38 a.m."
SELECT "pdt___7_utc_" FROM "table_name_69" WHERE "6:38 a.m." = "cdt___5_utc_"