diff --git a/controls-core/build.gradle.kts b/controls-core/build.gradle.kts
index 4e9daf8..53769c9 100644
--- a/controls-core/build.gradle.kts
+++ b/controls-core/build.gradle.kts
@@ -17,6 +17,7 @@ kotlin {
         commonMain{
             dependencies {
                 api("space.kscience:dataforge-io:$dataforgeVersion")
+                api(npm.kotlinx.datetime)
             }
         }
     }
diff --git a/controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/api/DeviceMessage.kt b/controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/api/DeviceMessage.kt
index b85df5b..f919f1e 100644
--- a/controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/api/DeviceMessage.kt
+++ b/controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/api/DeviceMessage.kt
@@ -1,5 +1,7 @@
 package ru.mipt.npm.controls.api
 
+import kotlinx.datetime.Clock
+import kotlinx.datetime.Instant
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
@@ -16,6 +18,7 @@ public sealed class DeviceMessage {
     public abstract val sourceDevice: Name?
     public abstract val targetDevice: Name?
     public abstract val comment: String?
+    public abstract val time: Instant?
 
     /**
      * Update the source device name for composition. If the original name is null, resulting name is also null.
@@ -52,6 +55,7 @@ public data class PropertyChangedMessage(
     override val sourceDevice: Name = Name.EMPTY,
     override val targetDevice: Name? = null,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = block(sourceDevice))
 }
@@ -67,6 +71,7 @@ public data class PropertySetMessage(
     override val sourceDevice: Name? = null,
     override val targetDevice: Name,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = sourceDevice?.let(block))
 }
@@ -82,6 +87,7 @@ public data class PropertyGetMessage(
     override val sourceDevice: Name? = null,
     override val targetDevice: Name,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = sourceDevice?.let(block))
 }
@@ -95,6 +101,7 @@ public data class GetDescriptionMessage(
     override val sourceDevice: Name? = null,
     override val targetDevice: Name,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = sourceDevice?.let(block))
 }
@@ -109,6 +116,7 @@ public data class DescriptionMessage(
     override val sourceDevice: Name,
     override val targetDevice: Name? = null,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = block(sourceDevice))
 }
@@ -124,6 +132,7 @@ public data class ActionExecuteMessage(
     override val sourceDevice: Name? = null,
     override val targetDevice: Name,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = sourceDevice?.let(block))
 }
@@ -139,6 +148,7 @@ public data class ActionResultMessage(
     override val sourceDevice: Name,
     override val targetDevice: Name? = null,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = block(sourceDevice))
 }
@@ -153,6 +163,7 @@ public data class BinaryNotificationMessage(
     override val sourceDevice: Name,
     override val targetDevice: Name? = null,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = block(sourceDevice))
 }
@@ -167,6 +178,7 @@ public data class EmptyDeviceMessage(
     override val sourceDevice: Name? = null,
     override val targetDevice: Name? = null,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = sourceDevice?.let(block))
 }
@@ -182,6 +194,7 @@ public data class DeviceLogMessage(
     override val sourceDevice: Name? = null,
     override val targetDevice: Name? = null,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = sourceDevice?.let(block))
 }
@@ -198,6 +211,7 @@ public data class DeviceErrorMessage(
     override val sourceDevice: Name,
     override val targetDevice: Name? = null,
     override val comment: String? = null,
+    override val time: Instant? = Clock.System.now()
 ) : DeviceMessage(){
     override fun changeSource(block: (Name) -> Name):DeviceMessage  = copy(sourceDevice = block(sourceDevice))
 }
diff --git a/controls-opcua/src/main/kotlin/ru/mipt/npm/controls/opcua/server/metaToOpc.kt b/controls-opcua/src/main/kotlin/ru/mipt/npm/controls/opcua/server/metaToOpc.kt
index ff23bf6..7aab6aa 100644
--- a/controls-opcua/src/main/kotlin/ru/mipt/npm/controls/opcua/server/metaToOpc.kt
+++ b/controls-opcua/src/main/kotlin/ru/mipt/npm/controls/opcua/server/metaToOpc.kt
@@ -1,16 +1,24 @@
 package ru.mipt.npm.controls.opcua.server
 
+import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import org.eclipse.milo.opcua.stack.core.types.builtin.DataValue
 import org.eclipse.milo.opcua.stack.core.types.builtin.DateTime
 import org.eclipse.milo.opcua.stack.core.types.builtin.StatusCode
 import org.eclipse.milo.opcua.stack.core.types.builtin.Variant
 import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.MetaSerializer
 import space.kscience.dataforge.meta.isLeaf
 import space.kscience.dataforge.values.*
+import java.time.Instant
 
-internal fun Meta.toOpc(statusCode: StatusCode = StatusCode.GOOD, time: DateTime? = null): DataValue {
+/**
+ * Convert Meta to OPC data value using
+ */
+internal fun Meta.toOpc(
+    statusCode: StatusCode = StatusCode.GOOD,
+    sourceTime: DateTime? = null,
+    serverTime: DateTime? = null
+): DataValue {
     val variant: Variant = if (isLeaf) {
         when (value?.type) {
             null, ValueType.NULL -> Variant.NULL_VALUE
@@ -24,7 +32,7 @@ internal fun Meta.toOpc(statusCode: StatusCode = StatusCode.GOOD, time: DateTime
             }
         }
     } else {
-        Variant(Json.encodeToString(MetaSerializer, this))
+        Variant(Json.encodeToString(this))
     }
-    return DataValue(variant, statusCode, time)
+    return DataValue(variant, statusCode, sourceTime,serverTime ?: DateTime(Instant.now()))
 }
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 69a9715..ffed3a2 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/settings.gradle.kts b/settings.gradle.kts
index ddaeba6..cf5e79e 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -7,7 +7,6 @@ pluginManagement {
     val toolsVersion = "0.10.4"
 
     repositories {
-        mavenLocal()
         maven("https://repo.kotlin.link")
         mavenCentral()
         gradlePluginPortal()
@@ -21,6 +20,19 @@ pluginManagement {
     }
 }
 
+dependencyResolutionManagement {
+    repositories {
+        maven("https://repo.kotlin.link")
+        mavenCentral()
+    }
+
+    versionCatalogs {
+        create("npm") {
+            from("ru.mipt.npm:version-catalog:0.10.4")
+        }
+    }
+}
+
 include(
     ":controls-core",
     ":controls-tcp",