AppleScript to automate the Spotify playlist launch based on the time of day

AwakenSpotify.scpt

--current time in seconds since midnight
set currentTime to (time of (current date))

## Morning
-- (04:00 - 10:30)
set morning to 37800
set morningVolume to 80
-- Happy: Wake Up in a Good Mood
set morningTrack to "spotify:user:116779154:playlist:5sYrf2RnhPY22meUSS5fUu"

## Afternoon
-- (10:30 - 16:30)
set afternoon to 54800
set afternoonVolume to 80
-- Totally Stress Free
set afternoonTrack to "spotify:user:spotify:playlist:7jq9hVhkNUyFLN1XivhLvK"

## Evening
-- (16:30 - 22:00)
set evening to 79200
set eveningVolume to 60
-- Evening Chill
set eveningTrack to "spotify:user:spotify:playlist:0eDq2STmk8tKcD7qWCwrze"

## Night
-- (22:00 - 04:00)
set night to 14400
set nightVolume to 50
-- Sleep Tight
set nightTrack to "spotify:user:spotify:playlist:1YRQAGw7qVJCLxWFGDsS3l"
set scriptVolume to null
set scriptTrack to null


if currentTime is less than night and currentTime is greater than 0 then
	set scriptVolume to nightVolume
	set scriptTrack to nightTrack
else if currentTime is less than morning and currentTime is greater than night then
	set scriptVolume to morningVolume
	set scriptTrack to morningTrack
else if currentTime is less than afternoon and currentTime is greater than morning then
	set scriptVolume to afternoonVolume
	set scriptTrack to afternoonTrack
else if currentTime is less than evening and currentTime is greater than afternoon then
	set scriptVolume to eveningVolume
	set scriptTrack to eveningTrack
else
	set scriptVolume to nightVolume
	set scriptTrack to nightTrack
end if

tell application "Spotify"
	launch
	delay 3
	set sound volume to (scriptVolume)
	play track scriptTrack
end tell