Examples:

• But now he's playing "beat the clock."
• Drive as fast as you can and beat the clock.
• Easy to beat the clock if it never starts.
• Try to beat the clock and become an expert boomerang thrower.
• What do you mean, he beat the clock?
• At her age, she should be playing beat the clock.
• These boys won't beat the clock, Phil.
• How did you beat the clock?
• If I beat the clock.
• Congratulations, you beat the clock.