Is Mr Harris flying at 12 o'clock on Tuesday? — No, he isn't. He's flying at 10 o'clock on Monday morning.Is Mr Harris meeting Mr Miller at 12 o'clock on Monday? — Yes, he is.Is Mr Harris having lunch with Mr Miller at 3 o'clock on Monday? — No, he isn't. He's having lunch with Mr Miller at 2 o'clock.Is Mr Harris making a speech at 11 o'clock on Tuesday? — Yes, he is.Is Mr Harris giving an interview at 5 o'clock on Tuesday? — No, he isn't. He's giving an interview at 3 o'clock.Is Mr Harris flying back at 6 o'clock on Tuesday? — Yes, he is.