What is the date for the UTC time of 03:15:46?
CREATE TABLE "list_of_aftershocks" (
  "date_yyyy_mm_dd" text,
  "time_utc" text,
  "latitude" text,
  "longitude" text,
  "depth" text,
  "magnitude" text
);
SELECT "date_yyyy_mm_dd" FROM "list_of_aftershocks" WHERE "time_utc"='03:15:46';