Related Clues:

• What time?
• At what time?
• That's the time it may be hewn
• "___ Harry Met Sally . . ."
• 'Since --?!'
• At which point I don't want any more drink
• That's enough with bird
• Loud protest over soldiers, each with gifts, new or otherwise, posing the unanswerable question
• That's enough whisky, old girl!
• Say it when you''ve had enough
• Say it when you have enough
• Stop pouring!
• At which time
• Question not asked in this puzzle's theme words
• "__ Harry Met Sally..."