Sets Lighting/TimeOfDay and Lighting/ClockTime to the given number of minutes after midnight.

How can I make a day / night script?

SetMinutesAfterMidnight allows a numerical value to be used, for example in a day/night cycle Script, without the need to convert to a string in the format required by Lighting/TimeOfDay. It also allows values greater than 24 hours to be given that correspond to times in the next day. See the code snippets below for an example.

Using Lighting/TimeOfDay requires the time to be normalized and a string formatted:

minutesAfterMidnight = 0
while true do
	minutesAfterMidnight = minutesAfterMidnight + 1

	local minutesNormalised = minutesAfterMidnight % (60 * 24)
	local seconds = minutesNormalised * 60
	local hours = string.format("%02.f", math.floor(seconds/3600))
	local mins = string.format("%02.f", math.floor(seconds/60 - (hours*60)))
	local secs = string.format("%02.f", math.floor(seconds - hours*3600 - mins *60))
	local timeString = hours..":"..mins..":"..secs

	Lighting.TimeOfDay = timeString

	wait()
end

Using Lighting/ClockTime requires the time to be normalized:

minutesAfterMidnight = 0
while true do
	minutesAfterMidnight = minutesAfterMidnight + 1

	local minutesNormalised = minutesAfterMidnight % (60 * 24)
	local hours = minutesNormalised / 60

	Lighting.ClockTime = hours

	wait()
end

Using Lighting/SetMinutesAfterMidnight requires no extra processing:

minutesAfterMidnight = 0
while true do
	minutesAfterMidnight = minutesAfterMidnight + 1

	Lighting:SetMinutesAfterMidnight(minutesAfterMidnight)

	wait()
end