Ambient sound triggered by time of day

I have a script that I was given that plays different sounds day vs. night. I would like to create a third category to play sounds at dusk. I have a general idea how to do it... any help here? The script is below:

list daySounds = ["American Oriole", "Cardinal", "Red-tailed Hawk", "Robin", "Song Sparrow", "Tree Swallow", "Locust"];
list nightSounds = ["Great Horned Owl"];

list nightAmbient = ["Cricket"];

default {
state_entry() {
llStopSound();
llSetTimerEvent(2.0);
}

timer() {
vector time = llGetSunDirection();
list myList;
float density = 0.9;

if (time.z > 0.0) {
myList = llListRandomize(daySounds, 1);
} else {
myList = llListRandomize(nightSounds, 1);
density = 0.98;

// Ambient nighttime sound
if (llFrand(1.0) > 0.85) {
llStopSound();
} else {
llLoopSound(llList2String(nightAmbient, 0), 1.0);
}
}

if (llFrand(1.0) > density) {
llTriggerSound(llList2String(myList, 0), 1.0);
}
}
}

Hello again!

I noticed somebody in the other forum said that they had sent you a script. Did you manage to modify their script to suit your needs?

If not, I'll modify the above script for you.

Hi Suisei,

you sound like you know what you're doing scriptwise, I was wondering if you could help me out too, or point me at a resource that might?

I have an installation called LIGHTIME at Bedos (251, 221, 59)

It's a 4 room piece based around the ideas of "natural" light, time and moving images. The first room is the one I need some scripting help with:

I need a way to control movement according to time of day so that I can make a clock? Doesn't have to update more than about every 15 mins.

Any help really appreciated as this is key to the whole piece.

Many thanks and don't worry if you don't have time :]

Cheers,
Nagual Candour