CREATE TABLE table_204_718 (id DECIMAL, "date" TEXT, "opponent" TEXT, "time" TEXT, "score" TEXT, "record" TEXT)

what is the number of opponents that play at 4pm ?
SELECT COUNT("opponent") FROM table_204_718 WHERE "time" = '4 p.m'
SELECT COUNT("opponent") FROM "table_204_718" WHERE "time" = '4 p.m'