diff --git a/Content.Client/Audio/AmbientSoundSystem.cs b/Content.Client/Audio/AmbientSoundSystem.cs
index 6de63bbf10..19dd6ecb1e 100644
--- a/Content.Client/Audio/AmbientSoundSystem.cs
+++ b/Content.Client/Audio/AmbientSoundSystem.cs
@@ -36,7 +36,7 @@ namespace Content.Client.Audio
         private bool _overlayEnabled;
         private float _maxAmbientRange;
         private float _cooldown;
-        private float _accumulator;
+        private TimeSpan _targetTime = TimeSpan.Zero;
         private float _ambienceVolume = 0.0f;
 
         /// <summary>
@@ -131,17 +131,16 @@ namespace Content.Client.Audio
         {
             base.Update(frameTime);
 
-            if (!_gameTiming.IsFirstTimePredicted) return;
+            if (!_gameTiming.IsFirstTimePredicted)
+                return;
 
             if (_cooldown <= 0f)
-            {
-                _accumulator = 0f;
                 return;
-            }
 
-            _accumulator += frameTime;
-            if (_accumulator < _cooldown) return;
-            _accumulator -= _cooldown;
+            if (_gameTiming.CurTime < _targetTime)
+                return;
+
+            _targetTime = _gameTiming.CurTime+TimeSpan.FromSeconds(_cooldown);
 
             var player = _playerManager.LocalPlayer?.ControlledEntity;
             if (!EntityManager.TryGetComponent(player, out TransformComponent? playerManager))
diff --git a/Content.Client/Movement/Systems/JetpackSystem.cs b/Content.Client/Movement/Systems/JetpackSystem.cs
index 02cfb07094..5e8794d116 100644
--- a/Content.Client/Movement/Systems/JetpackSystem.cs
+++ b/Content.Client/Movement/Systems/JetpackSystem.cs
@@ -46,10 +46,11 @@ public sealed class JetpackSystem : SharedJetpackSystem
 
         foreach (var comp in EntityQuery<ActiveJetpackComponent>())
         {
-            comp.Accumulator += frameTime;
+            if (_timing.CurTime < comp.TargetTime)
+                continue;
+
+            comp.TargetTime = _timing.CurTime + TimeSpan.FromSeconds(comp.EffectCooldown);
 
-            if (comp.Accumulator < comp.EffectCooldown) continue;
-            comp.Accumulator -= comp.EffectCooldown;
             CreateParticles(comp.Owner);
         }
     }
diff --git a/Content.Server/Abilities/Mime/MimePowersComponent.cs b/Content.Server/Abilities/Mime/MimePowersComponent.cs
index e185756b79..9009120d14 100644
--- a/Content.Server/Abilities/Mime/MimePowersComponent.cs
+++ b/Content.Server/Abilities/Mime/MimePowersComponent.cs
@@ -1,5 +1,6 @@
 using Content.Shared.Actions.ActionTypes;
 using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
 using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
 using Robust.Shared.Utility;
 
@@ -48,16 +49,15 @@ namespace Content.Server.Abilities.Mime
         public bool ReadyToRepent = false;
 
         /// <summary>
-        /// Accumulator for when the mime breaks their vows
+        /// Time when the mime can repent their vow
         /// </summary>
-
-        [DataField("accumulator")]
-        public float Accumulator = 0f;
+        [DataField("vowRepentTime", customTypeSerializer: typeof(TimeOffsetSerializer))]
+        public TimeSpan VowRepentTime = TimeSpan.Zero;
 
         /// <summary>
         /// How long it takes the mime to get their powers back
 
-        [DataField("vowCooldown")]
+        [DataField("vowCooldown", customTypeSerializer: typeof(TimeOffsetSerializer))]
         public TimeSpan VowCooldown = TimeSpan.FromMinutes(5);
     }
 }
diff --git a/Content.Server/Abilities/Mime/MimePowersSystem.cs b/Content.Server/Abilities/Mime/MimePowersSystem.cs
index b3601fcdb6..22db7e5321 100644
--- a/Content.Server/Abilities/Mime/MimePowersSystem.cs
+++ b/Content.Server/Abilities/Mime/MimePowersSystem.cs
@@ -9,6 +9,7 @@ using Content.Shared.Maps;
 using Content.Shared.MobState.Components;
 using Robust.Shared.Player;
 using Robust.Shared.Physics;
+using Robust.Shared.Timing;
 
 namespace Content.Server.Abilities.Mime
 {
@@ -18,6 +19,8 @@ namespace Content.Server.Abilities.Mime
         [Dependency] private readonly SharedActionsSystem _actionsSystem = default!;
         [Dependency] private readonly AlertsSystem _alertsSystem = default!;
 
+        [Dependency] private readonly IGameTiming _timing = default!;
+
         public override void Initialize()
         {
             base.Initialize();
@@ -34,8 +37,7 @@ namespace Content.Server.Abilities.Mime
                 if (!mime.VowBroken || mime.ReadyToRepent)
                     continue;
 
-                mime.Accumulator += frameTime;
-                if (mime.Accumulator < mime.VowCooldown.TotalSeconds)
+                if (_timing.CurTime < mime.VowRepentTime)
                     continue;
 
                 mime.ReadyToRepent = true;
@@ -101,6 +103,7 @@ namespace Content.Server.Abilities.Mime
 
             mimePowers.Enabled = false;
             mimePowers.VowBroken = true;
+            mimePowers.VowRepentTime = _timing.CurTime + mimePowers.VowCooldown;
             _alertsSystem.ClearAlert(uid, AlertType.VowOfSilence);
             _alertsSystem.ShowAlert(uid, AlertType.VowBroken);
             _actionsSystem.RemoveAction(uid, mimePowers.InvisibleWallAction);
@@ -123,7 +126,6 @@ namespace Content.Server.Abilities.Mime
             mimePowers.Enabled = true;
             mimePowers.ReadyToRepent = false;
             mimePowers.VowBroken = false;
-            mimePowers.Accumulator = 0f;
             _alertsSystem.ClearAlert(uid, AlertType.VowBroken);
             _alertsSystem.ShowAlert(uid, AlertType.VowOfSilence);
             _actionsSystem.AddAction(uid, mimePowers.InvisibleWallAction, uid);
diff --git a/Content.Server/Afk/AFKSystem.cs b/Content.Server/Afk/AFKSystem.cs
index f4226ee6e6..0f2bc52112 100644
--- a/Content.Server/Afk/AFKSystem.cs
+++ b/Content.Server/Afk/AFKSystem.cs
@@ -6,6 +6,7 @@ using Robust.Server.Player;
 using Robust.Shared.Configuration;
 using Robust.Shared.Enums;
 using Robust.Shared.Player;
+using Robust.Shared.Timing;
 
 namespace Content.Server.Afk;
 
@@ -17,10 +18,11 @@ public sealed class AFKSystem : EntitySystem
     [Dependency] private readonly IAfkManager _afkManager = default!;
     [Dependency] private readonly IConfigurationManager _configManager = default!;
     [Dependency] private readonly IPlayerManager _playerManager = default!;
+    [Dependency] private readonly IGameTiming _timing = default!;
     [Dependency] private readonly GameTicker _ticker = default!;
 
     private float _checkDelay;
-    private float _accumulator;
+    private TimeSpan _checkTime;
 
     private readonly HashSet<IPlayerSession> _afkPlayers = new();
 
@@ -50,7 +52,6 @@ public sealed class AFKSystem : EntitySystem
     {
         base.Shutdown();
         _afkPlayers.Clear();
-        _accumulator = 0f;
         _playerManager.PlayerStatusChanged -= OnPlayerChange;
         _configManager.UnsubValueChanged(CCVars.AfkTime, SetAfkDelay);
     }
@@ -62,16 +63,15 @@ public sealed class AFKSystem : EntitySystem
         if (_ticker.RunLevel != GameRunLevel.InRound)
         {
             _afkPlayers.Clear();
-            _accumulator = 0f;
+            _checkTime = TimeSpan.Zero;
             return;
         }
 
-        _accumulator += frameTime;
-
         // TODO: Should also listen to the input events for more accurate timings.
-        if (_accumulator < _checkDelay) return;
+        if (_timing.CurTime < _checkTime)
+            return;
 
-        _accumulator -= _checkDelay;
+        _checkTime = _timing.CurTime + TimeSpan.FromSeconds(_checkDelay);
 
         foreach (var session in Filter.GetAllPlayers())
         {
diff --git a/Content.Server/Atmos/Miasma/MiasmaSystem.cs b/Content.Server/Atmos/Miasma/MiasmaSystem.cs
index 3dd465acef..514a85183e 100644
--- a/Content.Server/Atmos/Miasma/MiasmaSystem.cs
+++ b/Content.Server/Atmos/Miasma/MiasmaSystem.cs
@@ -11,6 +11,7 @@ using Robust.Server.GameObjects;
 using Robust.Shared.Containers;
 using Robust.Shared.Physics.Components;
 using Robust.Shared.Random;
+using Robust.Shared.Timing;
 
 namespace Content.Server.Atmos.Miasma
 {
@@ -20,7 +21,9 @@ namespace Content.Server.Atmos.Miasma
         [Dependency] private readonly AtmosphereSystem _atmosphereSystem = default!;
         [Dependency] private readonly DamageableSystem _damageableSystem = default!;
         [Dependency] private readonly SharedMobStateSystem _mobState = default!;
+        [Dependency] private readonly MetaDataSystem _metaDataSystem = default!;
 
+        [Dependency] private readonly IGameTiming _timing = default!;
         [Dependency] private readonly IRobustRandom _random = default!;
 
         /// System Variables
@@ -62,11 +65,11 @@ namespace Content.Server.Atmos.Miasma
         /// </summary>
 
         /// <summary>
-        /// This ticks up to PoolRepickTime.
-        /// After that, it resets to 0.
-        /// Any infection will also reset it to 0.
+        /// The target time it waits until..
+        /// After that, it resets current time + _poolRepickTime.
+        /// Any infection will also reset it to current time + _poolRepickTime.
         /// </summary>
-        private float _poolAccumulator = 0f;
+        private TimeSpan _diseaseTime = TimeSpan.FromMinutes(5);
 
         /// <summary>
         /// How long without an infection before we pick a new disease.
@@ -77,29 +80,26 @@ namespace Content.Server.Atmos.Miasma
         {
             base.Update(frameTime);
             // Disease pool
-            _poolAccumulator += frameTime;
 
-            if (_poolAccumulator > _poolRepickTime.TotalSeconds)
+            if (_timing.CurTime >= _diseaseTime)
             {
-                _poolAccumulator = 0f;
+                _diseaseTime = _timing.CurTime + _poolRepickTime;
                 _poolDisease = _random.Pick(MiasmaDiseasePool);
             }
 
             // Rotting
-            foreach (var (rotting, perishable) in EntityQuery<RottingComponent, PerishableComponent>())
+            foreach (var (rotting, perishable, metadata) in EntityQuery<RottingComponent, PerishableComponent, MetaDataComponent>())
             {
                 if (!perishable.Progressing)
                     continue;
 
-                perishable.DeathAccumulator += frameTime;
-                if (perishable.DeathAccumulator < perishable.RotAfter.TotalSeconds)
+                if (!IsRotting(perishable, metadata))
                     continue;
 
-                perishable.RotAccumulator += frameTime;
-                if (perishable.RotAccumulator < _rotUpdateRate) // This is where it starts to get noticable on larger animals, no need to run every second
+                if (_timing.CurTime < perishable.RotNextUpdate) // This is where it starts to get noticable on larger animals, no need to run every second
                     continue;
 
-                perishable.RotAccumulator -= _rotUpdateRate;
+                perishable.RotNextUpdate = _timing.CurTime + TimeSpan.FromSeconds(_rotUpdateRate);
 
                 EnsureComp<FliesComponent>(perishable.Owner);
 
@@ -152,8 +152,8 @@ namespace Content.Server.Atmos.Miasma
             RemComp<FliesComponent>(uid);
             if (TryComp<PerishableComponent>(uid, out var perishable))
             {
-                perishable.DeathAccumulator = 0;
-                perishable.RotAccumulator = 0;
+                perishable.TimeOfDeath = TimeSpan.Zero;
+                perishable.RotNextUpdate = TimeSpan.Zero;
             }
         }
 
@@ -168,7 +168,20 @@ namespace Content.Server.Atmos.Miasma
         private void OnMobStateChanged(EntityUid uid, PerishableComponent component, MobStateChangedEvent args)
         {
             if (_mobState.IsDead(uid))
+            {
                 EnsureComp<RottingComponent>(uid);
+                component.TimeOfDeath = _timing.CurTime;
+            }
+        }
+
+        /// <summary>
+        ///     Has enough time passed for <paramref name="perishable"/> to start rotting?
+        /// </summary>
+        private bool IsRotting(PerishableComponent perishable, MetaDataComponent? metadata = null)
+        {
+            if (_timing.CurTime >= perishable.TimeOfDeath + perishable.RotAfter + _metaDataSystem.GetPauseTime(perishable.Owner, metadata))
+                return true;
+            return false;
         }
 
         private void OnGibbed(EntityUid uid, PerishableComponent component, BeingGibbedEvent args)
@@ -176,10 +189,10 @@ namespace Content.Server.Atmos.Miasma
             if (!TryComp<PhysicsComponent>(uid, out var physics))
                 return;
 
-            if (!component.Rotting)
+            if (!IsRotting(component))
                 return;
 
-            var molsToDump = (component.MolsPerSecondPerUnitMass * physics.FixturesMass) * component.DeathAccumulator;
+            var molsToDump = (component.MolsPerSecondPerUnitMass * physics.FixturesMass) * (float)(_timing.CurTime - component.TimeOfDeath).TotalSeconds;
             var transform = Transform(uid);
             var indices = _transformSystem.GetGridOrMapTilePosition(uid, transform);
             var tileMix = _atmosphereSystem.GetTileMixture(transform.GridUid, null, indices, true);
@@ -192,9 +205,10 @@ namespace Content.Server.Atmos.Miasma
 
         private void OnExamined(EntityUid uid, PerishableComponent component, ExaminedEvent args)
         {
-            if (!component.Rotting)
+            if (!IsRotting(component))
                 return;
-            var stage = component.DeathAccumulator / component.RotAfter.TotalSeconds;
+
+            var stage = (_timing.CurTime - component.TimeOfDeath).TotalSeconds / component.RotAfter.TotalSeconds;
             var description = stage switch {
                 >= 3 => "miasma-extremely-bloated",
                 >= 2 => "miasma-bloated",
@@ -254,7 +268,7 @@ namespace Content.Server.Atmos.Miasma
 
             perishable.Progressing = decompose;
 
-            if (!perishable.Rotting)
+            if (!IsRotting(perishable))
                 return;
 
             if (decompose)
@@ -290,7 +304,7 @@ namespace Content.Server.Atmos.Miasma
         public string RequestPoolDisease()
         {
             // We reset the current time on this outbreak so people don't get unlucky at the transition time
-            _poolAccumulator = 0f;
+            _diseaseTime = _timing.CurTime + _poolRepickTime;
             return _poolDisease;
         }
     }
diff --git a/Content.Server/Atmos/Miasma/PerishableComponent.cs b/Content.Server/Atmos/Miasma/PerishableComponent.cs
index 0f46d68d9f..4c60f2a9f6 100644
--- a/Content.Server/Atmos/Miasma/PerishableComponent.cs
+++ b/Content.Server/Atmos/Miasma/PerishableComponent.cs
@@ -1,3 +1,5 @@
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
+
 namespace Content.Server.Atmos.Miasma
 {
     [RegisterComponent]
@@ -16,22 +18,20 @@ namespace Content.Server.Atmos.Miasma
         /// <summary>
         /// How long this creature has been dead.
         /// </summary>
-        [DataField("deathAccumulator")]
+        [DataField("timeOfDeath", customTypeSerializer: typeof(TimeOffsetSerializer))]
         [ViewVariables(VVAccess.ReadWrite)]
-        public float DeathAccumulator = 0f;
+        public TimeSpan TimeOfDeath = TimeSpan.Zero;
 
         /// <summary>
         /// When DeathAccumulator is greater than this, start rotting.
         /// </summary>
         public TimeSpan RotAfter = TimeSpan.FromMinutes(5);
 
-        public bool Rotting => (DeathAccumulator > RotAfter.TotalSeconds);
-
         /// <summary>
-        /// Gasses are released every second.
+        /// Gasses are released, this is when the next gas release update will be.
         /// </summary>
-        [DataField("rotAccumulator")]
-        public float RotAccumulator = 0f;
+        [DataField("rotNextUpdate", customTypeSerializer: typeof(TimeOffsetSerializer))]
+        public TimeSpan RotNextUpdate = TimeSpan.Zero;
 
         /// <summary>
         /// How many moles of gas released per second, per unit of mass.
diff --git a/Content.Server/Bed/BedSystem.cs b/Content.Server/Bed/BedSystem.cs
index 8dec5153af..027e6609ba 100644
--- a/Content.Server/Bed/BedSystem.cs
+++ b/Content.Server/Bed/BedSystem.cs
@@ -15,6 +15,7 @@ using Content.Shared.Damage;
 using Content.Shared.Emag.Systems;
 using Content.Server.Construction;
 using Robust.Shared.Prototypes;
+using Robust.Shared.Timing;
 
 namespace Content.Server.Bed
 {
@@ -26,6 +27,7 @@ namespace Content.Server.Bed
         [Dependency] private readonly SleepingSystem _sleepingSystem = default!;
         [Dependency] private readonly SharedAppearanceSystem _appearance = default!;
         [Dependency] private readonly MobStateSystem _mobStateSystem = default!;
+        [Dependency] private readonly IGameTiming _timing = default!;
 
         public override void Initialize()
         {
@@ -44,6 +46,7 @@ namespace Content.Server.Bed
             if (args.Buckling)
             {
                 AddComp<HealOnBuckleHealingComponent>(uid);
+                component.NextHealTime = _timing.CurTime + TimeSpan.FromSeconds(component.HealTime);
                 if (sleepAction != null)
                     _actionsSystem.AddAction(args.BuckledEntity, new InstantAction(sleepAction), null);
                 return;
@@ -54,7 +57,6 @@ namespace Content.Server.Bed
 
             _sleepingSystem.TryWaking(args.BuckledEntity);
             RemComp<HealOnBuckleHealingComponent>(uid);
-            component.Accumulator = 0;
         }
 
         public override void Update(float frameTime)
@@ -63,12 +65,10 @@ namespace Content.Server.Bed
 
             foreach (var (_, bedComponent, strapComponent) in EntityQuery<HealOnBuckleHealingComponent, HealOnBuckleComponent, StrapComponent>())
             {
-                bedComponent.Accumulator += frameTime;
-
-                if (bedComponent.Accumulator < bedComponent.HealTime)
+                if (_timing.CurTime < bedComponent.NextHealTime)
                     continue;
 
-                bedComponent.Accumulator -= bedComponent.HealTime;
+                bedComponent.NextHealTime += TimeSpan.FromSeconds(bedComponent.HealTime);
 
                 if (strapComponent.BuckledEntities.Count == 0) continue;
 
diff --git a/Content.Server/Bed/Components/HealOnBuckleComponent.cs b/Content.Server/Bed/Components/HealOnBuckleComponent.cs
index 5e102c4e08..bab5d20282 100644
--- a/Content.Server/Bed/Components/HealOnBuckleComponent.cs
+++ b/Content.Server/Bed/Components/HealOnBuckleComponent.cs
@@ -15,6 +15,7 @@ namespace Content.Server.Bed.Components
 
         [DataField("sleepMultiplier")]
         public float SleepMultiplier = 3f;
-        public float Accumulator = 0f; //Time accumulated
+
+        public TimeSpan NextHealTime = TimeSpan.Zero; //Next heal
     }
 }
diff --git a/Content.Server/Movement/Systems/JetpackSystem.cs b/Content.Server/Movement/Systems/JetpackSystem.cs
index f1e7a91aac..5b8ecd29f8 100644
--- a/Content.Server/Movement/Systems/JetpackSystem.cs
+++ b/Content.Server/Movement/Systems/JetpackSystem.cs
@@ -3,12 +3,14 @@ using Content.Server.Atmos.EntitySystems;
 using Content.Shared.Movement.Components;
 using Content.Shared.Movement.Systems;
 using Robust.Shared.Collections;
+using Robust.Shared.Timing;
 
 namespace Content.Server.Movement.Systems;
 
 public sealed class JetpackSystem : SharedJetpackSystem
 {
     [Dependency] private readonly GasTankSystem _gasTank = default!;
+    [Dependency] private readonly IGameTiming _timing = default!;
 
     private const float UpdateCooldown = 0.5f;
 
@@ -25,10 +27,9 @@ public sealed class JetpackSystem : SharedJetpackSystem
 
         foreach (var (active, comp, gasTank) in EntityQuery<ActiveJetpackComponent, JetpackComponent, GasTankComponent>())
         {
-            active.Accumulator += frameTime;
-            if (active.Accumulator < UpdateCooldown) continue;
+            if (_timing.CurTime < active.TargetTime) continue;
 
-            active.Accumulator -= UpdateCooldown;
+            active.TargetTime = _timing.CurTime + TimeSpan.FromSeconds(active.EffectCooldown);
             var air = _gasTank.RemoveAir(gasTank, comp.MoleUsage);
 
             if (air == null || !MathHelper.CloseTo(air.TotalMoles, comp.MoleUsage, 0.001f))
diff --git a/Content.Shared/Movement/Components/ActiveJetpackComponent.cs b/Content.Shared/Movement/Components/ActiveJetpackComponent.cs
index b3318e23a0..5237205289 100644
--- a/Content.Shared/Movement/Components/ActiveJetpackComponent.cs
+++ b/Content.Shared/Movement/Components/ActiveJetpackComponent.cs
@@ -9,5 +9,5 @@ namespace Content.Shared.Movement.Components;
 public sealed class ActiveJetpackComponent : Component
 {
     public float EffectCooldown = 0.3f;
-    public float Accumulator = 0f;
+    public TimeSpan TargetTime = TimeSpan.Zero;
 }