CREATE TABLE "table1_22385461_6" (
  "num" text,
  "spacecraft" text,
  "spacewalkers" text,
  "start_utc" text,
  "end_utc" text,
  "duration" text
);

Question: What is the end (UTC) for spacecraft STS-114 Eva 3?
SQL: SELECT "end_utc" FROM "table1_22385461_6" WHERE "spacecraft"='STS-114 EVA 3';

Question: What is the start date and time of the walk that ends March 28, 2005, 11:31?
SQL: SELECT "start_utc" FROM "table1_22385461_6" WHERE "end_utc"='March 28, 2005, 11:31';