diff --git a/code/datums/trading/trade.dm b/code/datums/trading/trade.dm
index ef6032dc768..1d64855d7ae 100644
--- a/code/datums/trading/trade.dm
+++ b/code/datums/trading/trade.dm
@@ -57,7 +57,7 @@
 
 //If this hits 0 then they decide to up and leave.
 /datum/trader/proc/tick()
-	addtimer(CALLBACK(src, .proc/do_after_tick), 0)
+	addtimer(CALLBACK(src, .proc/do_after_tick), 1)
 	return 1
 
 /datum/trader/proc/do_after_tick()
diff --git a/code/game/machinery/computer/slotmachine.dm b/code/game/machinery/computer/slotmachine.dm
index 2680a7b3d3e..8e1ed9b82b4 100644
--- a/code/game/machinery/computer/slotmachine.dm
+++ b/code/game/machinery/computer/slotmachine.dm
@@ -171,7 +171,7 @@
 	update_icon()
 	updateUsrDialog()
 
-	addtimer(CALLBACK(src, .proc/do_reels), 0)
+	addtimer(CALLBACK(src, .proc/do_reels), 1)
 
 	addtimer(CALLBACK(src, .proc/finish_spin, user, the_name), SPIN_TIME - (REEL_DEACTIVATE_DELAY * reels.len)) //WARNING: no sanity checking for user since it's not needed and would complicate things (machine should still spin even if user is gone), be wary of this if you're changing this code.
 
diff --git a/code/game/machinery/kitchen/microwave.dm b/code/game/machinery/kitchen/microwave.dm
index 9c2d54cd5b2..8f7391de21c 100644
--- a/code/game/machinery/kitchen/microwave.dm
+++ b/code/game/machinery/kitchen/microwave.dm
@@ -58,7 +58,7 @@
 	reagents.my_atom = src
 	soundloop = new(list(src), FALSE)
 	if (mapload)
-		addtimer(CALLBACK(src, .proc/setup_recipes), 0)
+		addtimer(CALLBACK(src, .proc/setup_recipes), 1)
 	else
 		setup_recipes()
 
diff --git a/code/game/machinery/newscaster.dm b/code/game/machinery/newscaster.dm
index 8da07a2e8b5..ead07e62671 100644
--- a/code/game/machinery/newscaster.dm
+++ b/code/game/machinery/newscaster.dm
@@ -100,7 +100,7 @@ var/list/obj/machinery/newscaster/allCasters = list() //Global list that will co
 		src.ispowered = 1
 		src.update_icon()
 	else
-		addtimer(CALLBACK(src, .proc/post_power_loss), rand(0, 15))
+		addtimer(CALLBACK(src, .proc/post_power_loss), rand(1, 15))
 
 /obj/machinery/newscaster/proc/post_power_loss()
 	ispowered = 0
diff --git a/code/game/machinery/portable_turret.dm b/code/game/machinery/portable_turret.dm
index 8bb278d3412..bf48b9937bd 100644
--- a/code/game/machinery/portable_turret.dm
+++ b/code/game/machinery/portable_turret.dm
@@ -289,7 +289,7 @@
 	if(powered())
 		queue_icon_update()
 	else
-		addtimer(CALLBACK(src, .proc/lose_power), rand(0, 15))
+		addtimer(CALLBACK(src, .proc/lose_power), rand(1, 15))
 
 /obj/machinery/porta_turret/proc/lose_power()
 	stat |= NOPOWER
diff --git a/code/game/objects/items/weapons/storage/storage.dm b/code/game/objects/items/weapons/storage/storage.dm
index e661edea23c..f2e8c911402 100644
--- a/code/game/objects/items/weapons/storage/storage.dm
+++ b/code/game/objects/items/weapons/storage/storage.dm
@@ -633,7 +633,7 @@
 	orient2hud(null, mapload)
 
 	if (defer_shrinkwrap)	// Caller wants to defer shrinkwrapping until after the current callstack; probably putting something in.
-		addtimer(CALLBACK(src, .proc/shrinkwrap), 0)
+		addtimer(CALLBACK(src, .proc/shrinkwrap), 1)
 	else
 		shrinkwrap()
 
diff --git a/code/modules/clothing/clothing.dm b/code/modules/clothing/clothing.dm
index 0ba20e24d4a..35f862f5302 100644
--- a/code/modules/clothing/clothing.dm
+++ b/code/modules/clothing/clothing.dm
@@ -416,12 +416,12 @@
 
 /obj/item/clothing/gloves/dropped()
 	..()
-	addtimer(CALLBACK(src, .proc/update_wearer), 0)
+	INVOKE_ASYNC(src, .proc/update_wearer)
 
 /obj/item/clothing/gloves/mob_can_unequip()
 	. = ..()
 	if (.)
-		addtimer(CALLBACK(src, .proc/update_wearer), 0)
+		INVOKE_ASYNC(src, .proc/update_wearer)
 
 ///////////////////////////////////////////////////////////////////////
 //Head
diff --git a/code/modules/clothing/shoes/magboots.dm b/code/modules/clothing/shoes/magboots.dm
index b7977eeea7c..d4bc7674b56 100644
--- a/code/modules/clothing/shoes/magboots.dm
+++ b/code/modules/clothing/shoes/magboots.dm
@@ -81,12 +81,12 @@
 
 /obj/item/clothing/shoes/magboots/dropped()
 	..()
-	addtimer(CALLBACK(src, .proc/update_wearer), 0)
+	INVOKE_ASYNC(src, .proc/update_wearer)
 
 /obj/item/clothing/shoes/magboots/mob_can_unequip()
 	. = ..()
 	if (.)
-		addtimer(CALLBACK(src, .proc/update_wearer), 0)
+		INVOKE_ASYNC(src, .proc/update_wearer)
 
 /obj/item/clothing/shoes/magboots/examine(mob/user)
 	..(user)
diff --git a/code/modules/library/lib_items.dm b/code/modules/library/lib_items.dm
index f0bb64350f2..9bfdf0510bd 100644
--- a/code/modules/library/lib_items.dm
+++ b/code/modules/library/lib_items.dm
@@ -103,7 +103,7 @@
 	. = ..()
 	name = "[initial(name)] ([spawn_category])"
 
-	addtimer(CALLBACK(src, .proc/populate_shelves), 0)
+	addtimer(CALLBACK(src, .proc/populate_shelves), 1)
 
 /obj/structure/bookcase/libraryspawn/proc/populate_shelves()
 	if (!establish_db_connection(dbcon))
diff --git a/code/modules/mob/living/carbon/human/human_powers.dm b/code/modules/mob/living/carbon/human/human_powers.dm
index f87adca500b..5a7abc6cc11 100644
--- a/code/modules/mob/living/carbon/human/human_powers.dm
+++ b/code/modules/mob/living/carbon/human/human_powers.dm
@@ -5,7 +5,7 @@
 	set name = "Tie Hair"
 	set desc = "Style your hair."
 	set category = "IC"
-	
+
 	if(!use_check_and_message())
 		to_chat(src, span("warning", "You can't tie your hair when you are incapacitated!"))
 		return
@@ -928,7 +928,7 @@ mob/living/carbon/human/proc/change_monitor()
 
 		var/mob/living/carbon/human/G = new(src.loc)
 		G.key = O.brainmob.key
-		addtimer(CALLBACK(G, /mob/living/carbon/human.proc/set_species, O.dna.species), 0)
+		addtimer(CALLBACK(G, /mob/living/carbon/human.proc/set_species, O.dna.species), 1)
 		to_chat(src,"<span class='notice'>You blow life back in \the [O], returning its past owner to life!</span>")
 		qdel(O)
 		last_special = world.time + 200
diff --git a/code/modules/mob/living/carbon/human/species/station/golem.dm b/code/modules/mob/living/carbon/human/species/station/golem.dm
index 14d6d747ed9..78679397159 100644
--- a/code/modules/mob/living/carbon/human/species/station/golem.dm
+++ b/code/modules/mob/living/carbon/human/species/station/golem.dm
@@ -407,7 +407,7 @@ var/global/list/golem_types = list("Coal Golem",
 	for(var/i in 1 to 5)
 		var/obj/item/material/shard/T = new meat_type(H.loc)
 		var/turf/landing = get_step(H, pick(alldirs))
-		addtimer(CALLBACK(T, /atom/movable/.proc/throw_at, landing, 30, 5), 0)
+		addtimer(CALLBACK(T, /atom/movable/.proc/throw_at, landing, 30, 5), 1)
 	qdel(H)
 
 /datum/species/golem/glass/handle_post_spawn(var/mob/living/carbon/human/H)
diff --git a/code/modules/mob/living/simple_animal/hostile/krampus.dm b/code/modules/mob/living/simple_animal/hostile/krampus.dm
index 83227e6ebe7..e15f3c0fd93 100644
--- a/code/modules/mob/living/simple_animal/hostile/krampus.dm
+++ b/code/modules/mob/living/simple_animal/hostile/krampus.dm
@@ -109,7 +109,7 @@
 	for(var/i in 1 to 5)
 		var/mob/living/simple_animal/hostile/gift/T = new /mob/living/simple_animal/hostile/gift(get_turf(src))
 		var/turf/landing = get_step(src, pick(alldirs))
-		addtimer(CALLBACK(T, /atom/movable/.proc/throw_at, landing, 30, 5), 0)
+		addtimer(CALLBACK(T, /atom/movable/.proc/throw_at, landing, 30, 5), 1)
 
 /mob/living/simple_animal/hostile/krampus/proc/send_to_hell(mob/living/M)
 	if(!M)
diff --git a/code/modules/projectiles/guns/projectile/minigun.dm b/code/modules/projectiles/guns/projectile/minigun.dm
index a5f3334b38b..d233c07fffd 100644
--- a/code/modules/projectiles/guns/projectile/minigun.dm
+++ b/code/modules/projectiles/guns/projectile/minigun.dm
@@ -155,11 +155,11 @@
 	..()
 	if(source)
 		to_chat(user, "<span class='notice'>\The [src] snaps back onto \the [source].</span>")
-		addtimer(CALLBACK(source, /obj/item/minigunpack/.proc/remove_gun), 0)
+		addtimer(CALLBACK(source, /obj/item/minigunpack/.proc/remove_gun), 1)
 		source.update_icon()
 		user.update_inv_back()
 
 /obj/item/gun/projectile/automatic/rifle/minigun/Move()
 	..()
 	if(loc != source.loc)
-		addtimer(CALLBACK(source, /obj/item/minigunpack/.proc/remove_gun), 0)
\ No newline at end of file
+		addtimer(CALLBACK(source, /obj/item/minigunpack/.proc/remove_gun), 1)
\ No newline at end of file
diff --git a/code/modules/projectiles/projectile/change.dm b/code/modules/projectiles/projectile/change.dm
index 2e284b8ed12..805ea9c9cf4 100644
--- a/code/modules/projectiles/projectile/change.dm
+++ b/code/modules/projectiles/projectile/change.dm
@@ -75,7 +75,7 @@
 				H.name += " [pick(last_names)]"
 				H.real_name = H.name
 
-				addtimer(CALLBACK(H, /mob/living/carbon/human.proc/set_species, randomize), 0)
+				addtimer(CALLBACK(H, /mob/living/carbon/human.proc/set_species, randomize), 1)
 				H.universal_speak = 1
 				var/datum/preferences/A = new() //Randomize appearance for the human
 				A.randomize_appearance_for(H)