diff --git a/modular_citadel/code/controllers/subsystem/cit_nightshift.dm b/modular_citadel/code/controllers/subsystem/cit_nightshift.dm
deleted file mode 100644
index 5387b4bf01..0000000000
--- a/modular_citadel/code/controllers/subsystem/cit_nightshift.dm
+++ /dev/null
@@ -1,53 +0,0 @@
-/obj/machinery/light
-	var/obeysnightshift = FALSE
-	var/nightshift = FALSE
-
-/obj/machinery/light/Initialize()
-	. = ..()
-	var/area/a = get_area(src)
-	if(a.type in GLOB.the_station_areas)
-		obeysnightshift = TRUE
-		SSnightshift.nightlights += src
-
-/obj/machinery/light/Destroy()
-	if(obeysnightshift && src in SSnightshift.nightlights)
-		SSnightshift.nightlights -= src
-	. = ..()
-
-SUBSYSTEM_DEF(nightshift)
-	name = "Night shift"
-	wait = 3000
-	flags = SS_BACKGROUND
-
-	var/nightshift = FALSE
-	var/nightshift_light_power = 0.45
-	var/nightshift_light_color = "#FFDDCC"
-	var/nightshift_override = FALSE
-
-	var/list/nightlights = list()
-
-/datum/controller/subsystem/nightshift/Initialize()
-	if(CONFIG_GET(flag/nightshift_enabled) && !nightshift_override)
-		var/nighttime = text2num(time2text(world.timeofday,"hh"))
-		if(!nightshift && ((nighttime >= CONFIG_GET(number/nightshift_start)) || (nighttime <= CONFIG_GET(number/nightshift_finish))))
-			nightshift = TRUE
-			updatenightlights()
-	. = ..()
-
-/datum/controller/subsystem/nightshift/fire(resumed = 0)
-	if(CONFIG_GET(flag/nightshift_enabled) && !nightshift_override)
-		var/nighttime = text2num(time2text(world.timeofday,"hh"))
-		if(GLOB.security_level < SEC_LEVEL_RED && ((nighttime >= CONFIG_GET(number/nightshift_start)) || (nighttime <= CONFIG_GET(number/nightshift_finish))))
-			if(!nightshift)
-				nightshift = TRUE
-				updatenightlights()
-				priority_announce("Good afternoon, crew. To reduce power consumption and stimulate the circadian rhythms of some species, all of the lights aboard the station have been dimmed for the night.", sound='sound/misc/notice2.ogg', sender_override="Automated Lighting System Announcement")
-		else if(nightshift)
-			nightshift = FALSE
-			updatenightlights()
-			priority_announce("Good morning, crew. As it is now day time, all of the lights aboard the station have been restored to their former brightness.", sound='sound/misc/notice2.ogg', sender_override="Automated Lighting System Announcement")
-
-/datum/controller/subsystem/nightshift/proc/updatenightlights()
-	for(var/obj/machinery/light/nightlight in nightlights)
-		if(nightlight)
-			nightlight.update(FALSE)