Making sound tone down in volume after time script [isn't working?]

local time = game.Lighting.TimeOfDay
local t = tonumber(string.sub(time,1,2)..string.sub(time,4,5)..string.sub(time,7,8)) --convert time to a number

if t >= 73000 then
	for i = .2,0,-.001 do --loop that turns music down over 2 seconds
		wait(.01)
		script.Sunset.Volume = i
			if i == 0 then
				script.Sunset:Stop()
				break --is this necessary?
			end
	end 
	
script.Dawn:Play()

elseif t >= 200000 then
	for i = .2,0,-.001 do --same for this  ! 
		wait(.01)
		script.Dawn.Volume = i
			if i == 0 then
				script.Dawn:Stop()
				break
			end
	end
	
script.Sunset:Play()

end

I tried this on a multiplayer server, and the song for Dawn wouldn't tone down to 0 volume when the time came along. Any ideas?

ps: Huge thanks to the other guy that suggested I turned the strings into numbers so I could compare them using tonumber.

While I'm trying to figure it out, here's what I made from scratch.

local time = game.Lighting.TimeOfDay
local t = tonumber(string.sub(time,1,2)..string.sub(time,4,5)..string.sub(time,7,8)) --convert time to a number

if t >= 73000 and t < 200000 then
for i = .2,0,-.001 do
wait()
script.Sunset.Volume = i
end
script.Sunset:Stop()
script.Sunset.Volume = .2
script.Dawn:Play()

elseif t >= 200000 then
for i = .2,0,-.001 do
wait()
script.Dawn.Volume = i
end
script.Dawn:Stop()
script.Dawn.Volume = .2
script.Sunset:Play()
end