diff --git a/src/OpenFOAM/db/functionObjects/timeControl/timeControl.C b/src/OpenFOAM/db/functionObjects/timeControl/timeControl.C
index 48fe91ff35..9ebe9939f0 100644
--- a/src/OpenFOAM/db/functionObjects/timeControl/timeControl.C
+++ b/src/OpenFOAM/db/functionObjects/timeControl/timeControl.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2022 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2023 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -178,7 +178,7 @@ bool Foam::timeControl::execute()
         case timeControls::runTime:
         case timeControls::adjustableRunTime:
         {
-            label executionIndex = label
+            const label executionIndex = label
             (
                 (
                     (time_.value() - time_.beginTime().value())
@@ -197,7 +197,7 @@ bool Foam::timeControl::execute()
 
         case timeControls::cpuTime:
         {
-            label executionIndex = label
+            const label executionIndex = label
             (
                 returnReduce(time_.elapsedCpuTime(), maxOp<double>())
                /interval_
@@ -212,7 +212,7 @@ bool Foam::timeControl::execute()
 
         case timeControls::clockTime:
         {
-            label executionIndex = label
+            const label executionIndex = label
             (
                 returnReduce(label(time_.elapsedClockTime()), maxOp<label>())
                /interval_
@@ -244,4 +244,46 @@ bool Foam::timeControl::execute()
 }
 
 
+Foam::scalar Foam::timeControl::timeToNextWrite()
+{
+    switch (timeControl_)
+    {
+        case timeControls::timeStep:
+        case timeControls::writeTime:
+        case timeControls::outputTime:
+        case timeControls::runTime:
+        case timeControls::cpuTime:
+        case timeControls::clockTime:
+        case timeControls::none:
+        {
+            return vGreat;
+            break;
+        }
+
+        case timeControls::adjustableRunTime:
+        {
+            return
+                max
+                (
+                    0.0,
+                    (executionIndex_ + 1)*interval_
+                  - (time_.value() - time_.beginTime().value())
+                );
+            break;
+        }
+
+        default:
+        {
+            FatalErrorInFunction
+                << "Undefined output control: "
+                << timeControlNames_[timeControl_] << nl
+                << abort(FatalError);
+            break;
+        }
+    }
+
+    return vGreat;
+}
+
+
 // ************************************************************************* //
diff --git a/src/OpenFOAM/db/functionObjects/timeControl/timeControl.H b/src/OpenFOAM/db/functionObjects/timeControl/timeControl.H
index 24a9f4ed67..366fd29d0b 100644
--- a/src/OpenFOAM/db/functionObjects/timeControl/timeControl.H
+++ b/src/OpenFOAM/db/functionObjects/timeControl/timeControl.H
@@ -123,15 +123,12 @@ public:
         //- Flag to indicate whether to execute
         bool execute();
 
+        //- Return the time to the next write
+        scalar timeToNextWrite();
+
         //- Return control
         inline timeControls control() const;
 
-        //- Return interval
-        inline scalar interval() const;
-
-        //- Return the index of the previous execution
-        inline label executionIndex() const;
-
 
     // Member Operators
 
diff --git a/src/OpenFOAM/db/functionObjects/timeControl/timeControlFunctionObject.C b/src/OpenFOAM/db/functionObjects/timeControl/timeControlFunctionObject.C
index 617e04e080..750bc86125 100644
--- a/src/OpenFOAM/db/functionObjects/timeControl/timeControlFunctionObject.C
+++ b/src/OpenFOAM/db/functionObjects/timeControl/timeControlFunctionObject.C
@@ -159,26 +159,7 @@ bool Foam::functionObjects::timeControl::end()
 
 Foam::scalar Foam::functionObjects::timeControl::timeToNextWrite()
 {
-    if
-    (
-        active()
-     && writeControl_.control() ==
-        Foam::timeControl::timeControls::adjustableRunTime
-    )
-    {
-        const label  writeTimeIndex = writeControl_.executionIndex();
-        const scalar writeInterval = writeControl_.interval();
-
-        return
-            max
-            (
-                0.0,
-                (writeTimeIndex + 1)*writeInterval
-              - (time_.value() - time_.beginTime().value())
-            );
-    }
-
-    return vGreat;
+    return writeControl_.timeToNextWrite();
 }
 
 
diff --git a/src/OpenFOAM/db/functionObjects/timeControl/timeControlI.H b/src/OpenFOAM/db/functionObjects/timeControl/timeControlI.H
index e800181174..b84489e1a7 100644
--- a/src/OpenFOAM/db/functionObjects/timeControl/timeControlI.H
+++ b/src/OpenFOAM/db/functionObjects/timeControl/timeControlI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2023 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -37,16 +37,4 @@ inline Foam::timeControl::timeControls Foam::timeControl::control() const
 }
 
 
-inline Foam::scalar Foam::timeControl::interval() const
-{
-    return interval_;
-}
-
-
-inline Foam::label Foam::timeControl::executionIndex() const
-{
-    return executionIndex_;
-}
-
-
 // ************************************************************************* //