Time

Expression Code

time * 100

Where to Apply

Apply this expression to:

• Rotation
• Position (X or Y separately)
• Scale (individual axes)
• Opacity (used with extra math like sine)

How It Works

time * 100
// Multiplies the current comp time (in seconds) by 100
// So the value increases by 100 every second
// You can replace 100 with any number to control speed

The time expression tracks how many seconds have passed in your composition. So when you multiply time by a number, you're creating a value that grows steadily over time.

For example:

• At 0 seconds → value = 0
• At 2 seconds → value = 200 (if using time * 100)

This is perfect for making things move or change automatically, without setting any keyframes.

Time Expression on Position

[value[0] + time * 100, value[1]]

// Moves layer to the right over time
// Adds 100 pixels every second to X (horizontal position)
// Keeps Y (vertical) position unchanged

Time Expression on Rotation

time * 45
// Rotates the layer 45 degrees per second
// Change 45 to go faster or slower

Time Expression on Opacity (with pulsing effect)

Math.sin(time * 2) * 50 + 50 

// Creates a looping sine wave
// Opacity goes between 0 and 100
// Sine outputs values from -1 to 1 → scaled to 0–100

Time Expression on Scale (slow zoom effect)

[ value[0] + time * 10, value[1] + time * 10 ]

// Gradually increases both width and height
// Adds 10 units to X and Y scale every second
// Keeps the aspect ratio steady