[2024] After Effects How To Extend Timeline - 1 Simple Step

To swiftly adjust composition settings in After Effects, utilize the keyboard shortcut Ctrl/Cmd + K or navigate through the menu to the "Composition" option. Once inside, modify the duration using the timecode format, ensuring accuracy to maintain project timeline integrity.

February 11, 2024
[2024] After Effects How To Extend Timeline - 1 Simple Step
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How To Extend A Composition In After Effects

Composition settings are the backbone of your projects, dictating the framework and parameters within which your animations and effects come to life. They ensure that your work aligns with your vision, from the duration to the resolution and everything in between.

In this article, i'll explain:

  • Step-by-step guidance on accessing and adjusting these settings.
  • The intricacies of duration modification and its impact on your projects.
  • Tips and tricks to streamline your workflow and enhance efficiency.


1. Accessing Composition Settings:

  • Keyboard Shortcut Method:
  • Press the "Ctrl" key (if you're on a Windows machine) or the "Cmd" key (if you're on a Mac).
  • While holding down the aforementioned key, press the "K" key. This combination (Ctrl/Cmd + K) will open the Composition Settings dialog box.
  • Honestly, this shortcut is a lifesaver once you get the hang of it.
  • Menu Navigation Method:
  • Look at the top of your After Effects interface. You'll find a menu bar.
  • Navigate to the "Composition" option in the menu bar.
  • From the dropdown list, select "Composition Settings." This will also bring up the Composition Settings dialog box.
  • By the way, this method is a bit longer, but it's good to know if you ever forget the shortcut.

2. Modifying the Duration:

  • Once the Composition Settings dialog box is open, you see, there's a section labeled "Duration."
  • Here, you'll find a timecode format (hh:mm:ss:ff). This represents hours, minutes, seconds, and frames, respectively.
  • For instance, "01:30:15:12" means 1 hour, 30 minutes, 15 seconds, and 12 frames.
  • Click inside this box and manually input your desired duration using the timecode format.
  • For sure, it's crucial to ensure that you're entering the correct duration to avoid any issues with your project timeline.
  • After setting your desired duration, click "OK" to apply the changes.