diff --git a/CHANGELOG.md b/CHANGELOG.md
index f588d40713..44290c1dd2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -143,6 +143,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fix some minor issues and findings from inspections [#1019](https://github.com/ie3-institute/simona/issues/1019)
 - Fix initialisation freezing on empty primary data [#981](https://github.com/ie3-institute/simona/issues/981)
 - Shallow fetch in CI [#1041](https://github.com/ie3-institute/simona/issues/1041)
+- Correct wrong use of term "wall clock time" [#727](https://github.com/ie3-institute/simona/issues/727)
 
 ## [3.0.0] - 2023-08-07
 
diff --git a/src/main/scala/edu/ie3/simona/agent/grid/GridAgentController.scala b/src/main/scala/edu/ie3/simona/agent/grid/GridAgentController.scala
index ad0d6c3b07..8d615ec3af 100644
--- a/src/main/scala/edu/ie3/simona/agent/grid/GridAgentController.scala
+++ b/src/main/scala/edu/ie3/simona/agent/grid/GridAgentController.scala
@@ -455,9 +455,9 @@ class GridAgentController(
     * @param primaryServiceProxy
     *   Reference to the primary data service proxy
     * @param simulationStartDate
-    *   First wall clock time in simulation
+    *   The simulation time at which the simulation starts
     * @param simulationEndDate
-    *   Last wall clock time in simulation
+    *   The simulation time at which the simulation ends
     * @param resolution
     *   Frequency of power flow calculations
     * @param requestVoltageDeviationThreshold
@@ -512,9 +512,9 @@ class GridAgentController(
     * @param primaryServiceProxy
     *   Reference to the primary data service proxy
     * @param simulationStartDate
-    *   First wall clock time in simulation
+    *   The simulation time at which the simulation starts
     * @param simulationEndDate
-    *   Last wall clock time in simulation
+    *   The simulation time at which the simulation ends
     * @param resolution
     *   Frequency of power flow calculations
     * @param requestVoltageDeviationThreshold
@@ -571,9 +571,9 @@ class GridAgentController(
     * @param weatherService
     *   Reference to the weather service actor
     * @param simulationStartDate
-    *   First wall clock time in simulation
+    *   The simulation time at which the simulation starts
     * @param simulationEndDate
-    *   Last wall clock time in simulation
+    *   The simulation time at which the simulation ends
     * @param resolution
     *   Frequency of power flow calculations
     * @param requestVoltageDeviationThreshold
@@ -631,9 +631,9 @@ class GridAgentController(
     * @param evMovementsService
     *   Reference to the ev movements service actor
     * @param simulationStartDate
-    *   First wall clock time in simulation
+    *   The simulation time at which the simulation starts
     * @param simulationEndDate
-    *   Last wall clock time in simulation
+    *   The simulation time at which the simulation ends
     * @param resolution
     *   Frequency of power flow calculations
     * @param requestVoltageDeviationThreshold
@@ -749,9 +749,9 @@ class GridAgentController(
     * @param weatherService
     *   Reference to the weather service actor
     * @param simulationStartDate
-    *   First wall clock time in simulation
+    *   The simulation time at which the simulation starts
     * @param simulationEndDate
-    *   Last wall clock time in simulation
+    *   The simulation time at which the simulation ends
     * @param resolution
     *   Frequency of power flow calculations
     * @param requestVoltageDeviationThreshold
@@ -807,9 +807,9 @@ class GridAgentController(
     * @param primaryServiceProxy
     *   Reference to the primary data service proxy
     * @param simulationStartDate
-    *   First wall clock time in simulation
+    *   The simulation time at which the simulation starts
     * @param simulationEndDate
-    *   Last wall clock time in simulation
+    *   The simulation time at which the simulation ends
     * @param resolution
     *   Frequency of power flow calculations
     * @param requestVoltageDeviationThreshold
diff --git a/src/main/scala/edu/ie3/simona/agent/grid/GridResultsSupport.scala b/src/main/scala/edu/ie3/simona/agent/grid/GridResultsSupport.scala
index 59f0248f81..6b8b6520ff 100644
--- a/src/main/scala/edu/ie3/simona/agent/grid/GridResultsSupport.scala
+++ b/src/main/scala/edu/ie3/simona/agent/grid/GridResultsSupport.scala
@@ -617,7 +617,7 @@ object GridResultsSupport {
     /** Partial result for the port at the high voltage side
       *
       * @param time
-      *   Wall clock time, the result does belong to
+      *   Simulation time of the result
       * @param input
       *   Unique identifier of the input model
       * @param currentMagnitude
@@ -638,7 +638,7 @@ object GridResultsSupport {
     /** Partial result for the port at the medium voltage side
       *
       * @param time
-      *   Wall clock time, the result does belong to
+      *   Simulation time of the result
       * @param input
       *   Unique identifier of the input model
       * @param currentMagnitude
@@ -656,7 +656,7 @@ object GridResultsSupport {
     /** Partial result for the port at the low voltage side
       *
       * @param time
-      *   Wall clock time, the result does belong to
+      *   Simulation time of the result
       * @param input
       *   Unique identifier of the input model
       * @param currentMagnitude
diff --git a/src/main/scala/edu/ie3/simona/agent/participant/ParticipantAgentFundamentals.scala b/src/main/scala/edu/ie3/simona/agent/participant/ParticipantAgentFundamentals.scala
index 12b0e9657c..a505696943 100644
--- a/src/main/scala/edu/ie3/simona/agent/participant/ParticipantAgentFundamentals.scala
+++ b/src/main/scala/edu/ie3/simona/agent/participant/ParticipantAgentFundamentals.scala
@@ -214,9 +214,9 @@ protected trait ParticipantAgentFundamentals[
     * @param modelConfig
     *   Configuration for the model
     * @param simulationStartDate
-    *   Wall clock time of first instant in simulation
+    *   Simulation time of first instant in simulation
     * @param simulationEndDate
-    *   Wall clock time of last instant in simulation
+    *   Simulation time of last instant in simulation
     * @return
     */
   def buildModel(
diff --git a/src/main/scala/edu/ie3/simona/agent/participant/hp/HpAgentFundamentals.scala b/src/main/scala/edu/ie3/simona/agent/participant/hp/HpAgentFundamentals.scala
index 6a9d80cf58..534126b986 100644
--- a/src/main/scala/edu/ie3/simona/agent/participant/hp/HpAgentFundamentals.scala
+++ b/src/main/scala/edu/ie3/simona/agent/participant/hp/HpAgentFundamentals.scala
@@ -440,9 +440,9 @@ trait HpAgentFundamentals
     * @param modelConfig
     *   Configuration for the model
     * @param simulationStartDate
-    *   Wall clock time of first instant in simulation
+    *   Simulation time of first instant in simulation
     * @param simulationEndDate
-    *   Wall clock time of last instant in simulation
+    *   Simulation time of last instant in simulation
     * @return
     */
   override def buildModel(
diff --git a/src/main/scala/edu/ie3/simona/agent/participant/statedata/BaseStateData.scala b/src/main/scala/edu/ie3/simona/agent/participant/statedata/BaseStateData.scala
index b6ebd99841..04650f4763 100644
--- a/src/main/scala/edu/ie3/simona/agent/participant/statedata/BaseStateData.scala
+++ b/src/main/scala/edu/ie3/simona/agent/participant/statedata/BaseStateData.scala
@@ -43,7 +43,7 @@ trait BaseStateData[+PD <: PrimaryDataWithApparentPower[PD]]
     */
   val startDate: ZonedDateTime
 
-  /** The wall clock date, at which the simulation ends
+  /** The simulation time at which the simulation ends
     */
   val endDate: ZonedDateTime
 
@@ -132,7 +132,7 @@ object BaseStateData {
     * @param startDate
     *   The date, that fits the tick 0
     * @param endDate
-    *   The wall clock date, at which the simulation ends
+    *   The simulation time at which the simulation ends
     * @param outputConfig
     *   Determines the output behaviour of this model
     * @param additionalActivationTicks
@@ -179,7 +179,7 @@ object BaseStateData {
     * @param startDate
     *   The date, that fits the tick 0
     * @param endDate
-    *   The wall clock date, at which the simulation ends
+    *   The simulation time at which the simulation ends
     * @param model
     *   Physical model of the load
     * @param services
diff --git a/src/main/scala/edu/ie3/simona/service/primary/PrimaryServiceProxy.scala b/src/main/scala/edu/ie3/simona/service/primary/PrimaryServiceProxy.scala
index 838608a514..45de3bae63 100644
--- a/src/main/scala/edu/ie3/simona/service/primary/PrimaryServiceProxy.scala
+++ b/src/main/scala/edu/ie3/simona/service/primary/PrimaryServiceProxy.scala
@@ -79,7 +79,7 @@ import scala.util.{Failure, Success, Try}
   * @param scheduler
   *   Reference to the scheduler of the simulation
   * @param startDateTime
-  *   Wall clock time of the first instant in simulation
+  *   Simulation time of the first instant in simulation
   */
 case class PrimaryServiceProxy(
     scheduler: ActorRef,
@@ -132,7 +132,7 @@ case class PrimaryServiceProxy(
     * @param primaryConfig
     *   Configuration for the primary source
     * @param simulationStart
-    *   Wall clock time of first instant in simulation
+    *   Simulation time of first instant in simulation
     * @return
     *   State data, containing the known model and time series identifiers
     */
@@ -505,7 +505,7 @@ object PrimaryServiceProxy {
     * @param primaryConfig
     *   Configuration for the primary source
     * @param simulationStart
-    *   Wall clock time of the first instant in simulation
+    *   Simulation time of the first instant in simulation
     */
   final case class InitPrimaryServiceProxyStateData(
       primaryConfig: PrimaryConfig,
@@ -519,7 +519,7 @@ object PrimaryServiceProxy {
     * @param timeSeriesToSourceRef
     *   Mapping from time series identifier to [[SourceRef]]
     * @param simulationStart
-    *   Wall clock time of the first instant in simulation
+    *   Simulation time of the first instant in simulation
     * @param primaryConfig
     *   The configuration for the sources
     * @param mappingSource
diff --git a/src/main/scala/edu/ie3/simona/service/primary/PrimaryServiceWorker.scala b/src/main/scala/edu/ie3/simona/service/primary/PrimaryServiceWorker.scala
index b20fdd834c..f61974392d 100644
--- a/src/main/scala/edu/ie3/simona/service/primary/PrimaryServiceWorker.scala
+++ b/src/main/scala/edu/ie3/simona/service/primary/PrimaryServiceWorker.scala
@@ -228,8 +228,8 @@ final case class PrimaryServiceWorker[V <: Value](
       Option[Long],
   ) = {
     /* Get the information to distribute */
-    val wallClockTime = tick.toDateTime(serviceBaseStateData.startDateTime)
-    serviceBaseStateData.source.getValue(wallClockTime).toScala match {
+    val simulationTime = tick.toDateTime(serviceBaseStateData.startDateTime)
+    serviceBaseStateData.source.getValue(simulationTime).toScala match {
       case Some(value) =>
         processDataAndAnnounce(tick, value, serviceBaseStateData)
       case None =>
@@ -237,7 +237,7 @@ final case class PrimaryServiceWorker[V <: Value](
         log.warning(
           s"I expected to get data for tick '{}' ({}), but data is not available",
           tick,
-          wallClockTime,
+          simulationTime,
         )
         updateStateDataAndBuildTriggerMessages(serviceBaseStateData)
     }
@@ -371,7 +371,7 @@ object PrimaryServiceWorker {
     * @param timeSeriesUuid
     *   Unique identifier of the time series to read
     * @param simulationStart
-    *   Wall clock time of the beginning of simulation time
+    *   Simulation time of the beginning of simulation time
     * @param csvSep
     *   Column separation character of the csv files
     * @param directoryPath
@@ -400,7 +400,7 @@ object PrimaryServiceWorker {
     * @param timeSeriesUuid
     *   Unique identifier of the time series to read
     * @param simulationStart
-    *   Wall clock time of the beginning of simulation time
+    *   Simulation time of the beginning of simulation time
     * @param sqlParams
     *   Parameters regarding SQL connection and table selection
     * @param databaseNamingStrategy
@@ -420,7 +420,7 @@ object PrimaryServiceWorker {
     * @param activationTicks
     *   Linked collection of ticks, in which data is available
     * @param startDateTime
-    *   Wall clock time of the first instant in simulation
+    *   Simulation time of the first instant in simulation
     * @param source
     *   Implementation of [[TimeSeriesSource]] to use for actual acquisition of
     *   data
diff --git a/src/main/scala/edu/ie3/simona/service/weather/SampleWeatherSource.scala b/src/main/scala/edu/ie3/simona/service/weather/SampleWeatherSource.scala
index 0db3ded44c..7f3a7de525 100644
--- a/src/main/scala/edu/ie3/simona/service/weather/SampleWeatherSource.scala
+++ b/src/main/scala/edu/ie3/simona/service/weather/SampleWeatherSource.scala
@@ -65,15 +65,15 @@ final class SampleWeatherSource(
   private def getWeather(
       tick: Long
   ): WeatherData = {
-    val wallClockTime = tick.toDateTime
-    val month = wallClockTime.get(MONTH_OF_YEAR) - 1
-    val hour = wallClockTime.get(HOUR_OF_DAY)
+    val simulationTime = tick.toDateTime
+    val month = simulationTime.get(MONTH_OF_YEAR) - 1
+    val hour = simulationTime.get(HOUR_OF_DAY)
     val year =
       if (
-        wallClockTime.get(YEAR) != 2011 && !(wallClockTime
+        simulationTime.get(YEAR) != 2011 && !(simulationTime
           .get(YEAR) == 2012 && month == 0)
       ) 2011
-      else wallClockTime.get(YEAR)
+      else simulationTime.get(YEAR)
     val index = (((year - 2011) * 288) + (month * 24) + hour) + 1
     WeatherData(
       WattsPerSquareMeter(
diff --git a/src/test/scala/edu/ie3/simona/agent/participant/ParticipantAgentMock.scala b/src/test/scala/edu/ie3/simona/agent/participant/ParticipantAgentMock.scala
index c3c77e2292..3e17e76ccb 100644
--- a/src/test/scala/edu/ie3/simona/agent/participant/ParticipantAgentMock.scala
+++ b/src/test/scala/edu/ie3/simona/agent/participant/ParticipantAgentMock.scala
@@ -260,9 +260,9 @@ class ParticipantAgentMock(
     * @param modelConfig
     *   Configuration for the model
     * @param simulationStartDate
-    *   Wall clock time of first instant in simulation
+    *   The simulation time at which the simulation starts
     * @param simulationEndDate
-    *   Wall clock time of last instant in simulation
+    *   The simulation time at which the simulation ends
     * @return
     */
   override def buildModel(