Related Clues:

• Zillions of years
• Billions of years, geologically
• Long stretches
• Forever, figuratively
• Years upon years
• Basketball defenses
• Countless centuries
• Long periods of time
• Awfully long time
• Geological periods
• Map areas
• UPS map sections
• Vast sweep of time
• Time immemorial
• They have all the time in the world