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How Long Does a Clock Tower Boost Last and How Much Time Does It Accelerate?

Published in Clash of Clans Boosts 3 mins read

A Clock Tower boost in the Builder Base lasts for 30 minutes and accelerates all ongoing timers by a factor of ten (10x). This means that for every minute the boost is active, ten minutes of progress are made on your Builder Base upgrades, troop training, and resource production timers.

Understanding the Clock Tower's Impact

The Clock Tower is a unique structure in the Builder Base designed to significantly speed up your progress. When activated, it doesn't just reduce a fixed amount of time; instead, it supercharges all active timers.

Here's a breakdown of its key effects:

  • Duration: The boost remains active for 30 minutes.
  • Acceleration: During these 30 minutes, any active timer progresses at ten times its normal speed.
  • Effective Time Savings: Over the full 30-minute duration, the boost effectively achieves 300 minutes (or 5 hours) worth of timer progress. This means 270 minutes (300 minutes of progress - 30 minutes of real-time elapsed) are effectively "taken off" the normal time it would take for tasks to complete.
  • Cost: Activating the Clock Tower consumes one Clock Tower Potion.

How the Acceleration Works

Imagine you have a new upgrade that takes 1 hour (60 minutes) to complete. With the Clock Tower boost active:

  • Normal Progression: In 1 minute of real-time, 1 minute of upgrade time passes.
  • Boosted Progression: In 1 minute of real-time, 10 minutes of upgrade time pass.

Therefore, for your 1-hour (60-minute) upgrade:

  • After 1 minute of real-time with the boost, 10 minutes of the upgrade are complete.
  • After 6 minutes of real-time with the boost, 60 minutes (1 hour) of the upgrade are complete, finishing your upgrade.

This means a 1-hour upgrade is effectively completed in just 6 minutes when the boost is active. The boost effectively "takes off" 54 minutes (60 - 6) from that specific task.

The table below summarizes the Clock Tower's acceleration:

Aspect Detail
Boost Duration 30 minutes
Acceleration Factor 10x (ten times faster)
Effective Progress 300 minutes (5 hours) of timer progression
Resource Cost 1 Clock Tower Potion

Maximizing Your Boost

To get the most out of your Clock Tower boost, consider these practical tips:

  • Queue Long Upgrades: Activate the boost when you have multiple long-duration upgrades, building, or troop training queues running. This ensures the maximum amount of time is accelerated.
  • Plan Ahead: Try to align your boost activation with periods when you have several Builder Base builders free to start new projects immediately, or when a major resource collection is about to complete.
  • Resource Management: Ensure you have enough resources (Gold, Elixir) to start new upgrades right after the current ones are finished by the boost.
  • Focus on Key Structures: Prioritize boosting progress on crucial defensive structures, offensive buildings, or troop upgrades that will significantly impact your base's strength.

Clock Tower Potion

The Clock Tower can only be activated if you possess at least one Clock Tower Potion. These potions are typically acquired through the Trader, Clan Games rewards, or various in-game events, providing a valuable way to manage your progress efficiently in the Builder Base.