SpeedSet Alternatively

[Agile98]

I want Script for  seting game speed 1 times for 15 seconds

then

game speed 5 times for 6 minutes 

and make loop to to change speed 1 and 5 indefinitely 

Edited May 31 by Agile98
correction

[CmP]

Not very clear description, see yourself whether the following does what you want: 

local function setSpeedForSeconds(speed, seconds)
  gg.setSpeed(speed)
  gg.sleep(seconds * 1000)
end

while true do
  setSpeedForSeconds(1, 15)
  setSpeedForSeconds(5, 360)
end