How to classify speed in the sense of “Instant”?

[CNBA3]

Just as the title suggests, what would be a proper classification of speed or usage of time for something that is “Instant”?

Example: Enemies are capable of warping across star systems in an instant.

 

[BestMGQScalerEver]

1 second

 

[Lloydblitzed]

Just as the title suggests, what would be a proper classification of speed or usage of time for something that is “Instant”?

Example: Enemies are capable of warping across star systems in an instant.

MFTL+ speed feat ig

 

[CNBA3]

1 second

MFTL+ speed feat ig

Okay, thanks, just wanted to make sure I am not using the term wrong for feats.