After choosing where and how to save your animations, it is time to start

rendering. You can either press CTRL+F12 or use the Render →

Render Animation menu. The rendering of animation will most likely

take a long time, and you should prepare the computer to stay

processing the project for a while.

For projects using Cycles for rendering, processing might require a

couple of hours or days to complete. That depends on a combination of

how complex your project is and the available hardware. You can have

an idea about how long it will take by making a quick calculation.

If one frame takes on average 1 minute to render and the full length of

your animation has 2400 frames, it will take 2400 minutes (1-minute x

2400) to finish. That will roughly give 40 hours of rendering — almost

two days of processing the animation.

To reduce that time, you can do a few things:

Use lower values for sampling and activating the Denoising feature

in Cycles;

Upgrade your hardware! Getting a better GPU (Graphics

processing unit) might dramatically reduce rendering times. A few

options include high-end cards like the RTX family from NVIDIA,

which will give you an option to use OptiX Denoising. A better CPU

with multiple cores might also give a speed boost.

Optimize your scene and remove any visual effects or features

slowing down the render. Add those same effects later in post-

processing.

Since the computer hardware market constantly changes in short

periods, I recommend checking the Blender Open Data: