There should be a measurement for everything. For example, some use metrics while some others use imperials.
But for audios and videos, there were some problems because "second" which is the Standard International unit of time, is not always used as measurements.
In order to make it easier companies developers and other visual content creators to work with individual frames on screen, Facebook has created a unit with which to measure time, that divides more neatly than seconds.
The unit is called a Flick, and it’s equivalent to 1/705600000th of a second. According to Facebook, this is how it works:
"(This can) in integer quantities exactly represent a single frame duration for 24hz, 25hz, 30hz, 48hz, 50hz, 60hz, 90hz, 100hz, 120hz, and also 1/1000 divisions of each."
Flicks here is meant to fix time problems for people and computers that deal with video and audio content production, as well as their distribution on a regular basis.
But for Facebook, it was Christopher Horvath, a former Facebook employee at Oculus’ Story Studio that developed the unit.
Flick here measures things that are related to video and audio. For example, 120hz TVs. 24 frames per second (fps) is already an industry standard for movie business.
But these numbers generate uneven numbers. Most movies and TV shows that are displayed at 24 frames per second, have each of their frame to appear 0.04166666666... seconds long.
But with the “6” going on forever can be difficult for computers, and this is why it's often abbreviated to 0.04167 which is convenient, but not precise.
This is a problem like when editing content precisely, or figuring out exactly how many frames of animations are needed for overlaying a video. Numbers that aren't precise can screw everything because syncing involves calculating the duration of clips in seconds.
But with Flicks, a single frame at 24fps or 1/24 equals to 29,400,000 flicks. The same goes for the previous examples. 1/120th is 5,880,000 flicks, while 1/44,100 is 16,000 flicks.