if 1 Hz is a frequency occuring each second, then 0.2Hz is the fifth of 1Hz.. then 1/5 second is it right?
There are hundreds of words that match this; bedraggle, defeating, deflating are but three.
One minute is sixty (60) seconds, so one fifth of that is twelve (12) seconds.
The duration of Fifth Gear is 1380.0 seconds.
The duration of The Fifth Corner is 3600.0 seconds.
The duration of The Fifth Quarter is 3000.0 seconds.
there are 12 seconds in a fifth of a minute
The average speed is one fifth of the distance that she travels from the third to the eighth second.
The duration of The Fifth-Column Mouse is 420.0 seconds.
you can convert it into many ways one of the ways is 8/10 the second 4/5 the third 16/20 the fourth 32/40 the fifth 64/80 and so on...