Nightshifts & Randomized Station Time

This commit adds the Nightshift lighting mode from /tg/. From 19:00 to
07:00 in station time, the station will go into a reduced-lighting mode,
with dimmed lights across the station.

In conjunction with this, there is a new configuration option to start
the shift time at a random time other than 12:00, so that players are
more likely to experience a night shift (as opposed to having to have a
7 hour round).

code/game/objects/items/devices/autopsy.dm

@@ -96,7 +96,7 @@
 	var/scan_data = ""
 
 	if(timeofdeath)
-		scan_data += "<b>Time of death:</b> [worldtime2text(timeofdeath)]<br><br>"
+		scan_data += "<b>Time of death:</b> [station_time_timestamp("hh:mm:ss", timeofdeath)]<br><br>"
 
 	var/n = 1
 	for(var/wdata_idx in wdata)
@@ -146,7 +146,7 @@
 		if(damaging_weapon)
 			scan_data += "Severity: [damage_desc]<br>"
 			scan_data += "Hits by weapon: [total_hits]<br>"
-		scan_data += "Approximate time of wound infliction: [worldtime2text(age)]<br>"
+		scan_data += "Approximate time of wound infliction: [station_time(age)]<br>"
 		scan_data += "Affected limbs: [D.organ_names]<br>"
 		scan_data += "Possible weapons:<br>"
 		for(var/weapon_name in weapon_chances)

code/game/objects/items/devices/scanners.dm

@@ -160,7 +160,7 @@ REAGENT SCANNER
 	user.show_message("\t Damage Specifics: <font color='blue'>[OX]</font> - <font color='green'>[TX]</font> - <font color='#FFA500'>[BU]</font> - <font color='red'>[BR]</font>")
 	user.show_message("<span class='notice'>Body Temperature: [M.bodytemperature-T0C]&deg;C ([M.bodytemperature*1.8-459.67]&deg;F)</span>", 1)
 	if(M.timeofdeath && (M.stat == DEAD || (M.status_flags & FAKEDEATH)))
-		user.show_message("<span class='notice'>Time of Death: [worldtime2text(M.timeofdeath)]</span>")
+		user.show_message("<span class='notice'>Time of Death: [station_time_timestamp("hh:mm:ss", M.timeofdeath)]</span>")
 	if(istype(M, /mob/living/carbon/human) && mode == 1)
 		var/mob/living/carbon/human/H = M
 		var/list/damaged = H.get_damaged_organs(1,1)
@@ -432,7 +432,7 @@ REAGENT SCANNER
 		sleep(50)
 
 		var/obj/item/weapon/paper/P = new(get_turf(src))
-		P.name = "Mass Spectrometer Scanner Report: [worldtime2text()]"
+		P.name = "Mass Spectrometer Scanner Report: [station_time_timestamp()]"
 		P.info = "<center><b>Mass Spectrometer</b></center><br><center>Data Analysis:</center><br><hr><br><b>Trace chemicals detected:</b><br>[datatoprint]<br><hr>"
 
 		if(ismob(loc))
@@ -502,7 +502,7 @@ REAGENT SCANNER
 		sleep(50)
 
 		var/obj/item/weapon/paper/P = new(get_turf(src))
-		P.name = "Reagent Scanner Report: [worldtime2text()]"
+		P.name = "Reagent Scanner Report: [station_time_timestamp()]"
 		P.info = "<center><b>Reagent Scanner</b></center><br><center>Data Analysis:</center><br><hr><br><b>Chemical agents detected:</b><br> [datatoprint]<br><hr>"
 
 		if(ismob(loc))

code/game/objects/items/weapons/cards_ids.dm

@@ -123,9 +123,9 @@
 	if(guest_pass)
 		to_chat(user, "<span class='notice'>There is a guest pass attached to this ID card</span>")
 		if(world.time < guest_pass.expiration_time)
-			to_chat(user, "<span class='notice'>It expires at [worldtime2text(guest_pass.expiration_time)].</span>")
+			to_chat(user, "<span class='notice'>It expires at [station_time_timestamp("hh:mm:ss", guest_pass.expiration_time)].</span>")
 		else
-			to_chat(user, "<span class='warning'>It expired at [worldtime2text(guest_pass.expiration_time)].</span>")
+			to_chat(user, "<span class='warning'>It expired at [station_time_timestamp("hh:mm:ss", guest_pass.expiration_time)].</span>")
 		to_chat(user, "<span class='notice'>It grants access to following areas:</span>")
 		for(var/A in guest_pass.temp_access)
 			to_chat(user, "<span class='notice'>[get_access_desc(A)].</span>")