Reaction time is the time it takes a person or thing to perceive their environment and adjust to it accordingly. In humans, reaction time usually varies between 0.3 and 0.1 seconds, though the average tends to lie between 0.25 and 0.2 seconds.
For the purposes of this wiki, reactions are measured by the length of time it takes for a character to process an event. Whether or not the character can move quick enough to act on that event is irrelevant. In this sense, it may be possible for a computer to have a reaction time measured in microseconds, but its movement speed is still 0.
Given the speed of some characters it is considered impractical to measure all reaction times in terms of a normal second. Because of this reaction time listings will be in terms of their appropriate prefixed timeframe (Ex. "1 millisecond" rather than 0.001 s). A complete list of these is below.
- Second - 1< s
- Decisecond - 1 s to 0.1 s
- Centisecond - 0.1 s to 0.01 s
- Millisecond - 0.01 s to 0.000001 s
- Microsecond - 10-6 s to 10-9 s
- Nanosecond - 10-9 s to 10-12 s
- Picosecond - 10-12 s to 10-15 s
- Femtosecond - 10-15 s to 10-18 s
- Attosecond - 10-18 s to 10-21 s
- Zeptosecond - 10-21 s to 10-24 s
- Yoctosecond - 10-24 s to 10-44 s
- Planck Time - 10-44 s to 0 s