diff --git a/openapi/openapiv2.json b/openapi/openapiv2.json
index cbb73e756..a6720e2fa 100644
--- a/openapi/openapiv2.json
+++ b/openapi/openapiv2.json
@@ -12917,6 +12917,10 @@
         "propagatedNexusSerializationContext": {
           "$ref": "#/definitions/v1PropagatedSerializationContext",
           "description": "Serialization context propagated from the Nexus caller that started this workflow."
+        },
+        "timeSkippingStatePropagation": {
+          "$ref": "#/definitions/v1TimeSkippingStatePropagation",
+          "description": "Time-skipping state propagated by the execution that started this workflow.\nThis field is intended for use by the Temporal server, for example when a schedule\nstarts a workflow, and is not intended to be set by external clients."
         }
       }
     },
@@ -19487,6 +19491,10 @@
         },
         "state": {
           "$ref": "#/definitions/v1ScheduleState"
+        },
+        "timeSkippingConfig": {
+          "$ref": "#/definitions/v1TimeSkippingConfig",
+          "description": "Time-skipping configuration for this schedule.\nWhen enabled, the schedule advances its virtual time without waiting for\nwall-clock time, causing scheduled actions to be triggered sooner.\nThis feature is intended for testing only."
         }
       }
     },
@@ -19591,6 +19599,10 @@
           "type": "string",
           "format": "int64",
           "description": "Size of the schedule's internal state (including payloads) in bytes."
+        },
+        "timeSkippingInfo": {
+          "$ref": "#/definitions/v1TimeSkippingInfo",
+          "description": "Information about time skipping for this schedule.\nIf the schedule has never enabled time skipping, this will be unset."
         }
       }
     },
diff --git a/openapi/openapiv3.yaml b/openapi/openapiv3.yaml
index a6465fa4b..047a3135b 100644
--- a/openapi/openapiv3.yaml
+++ b/openapi/openapiv3.yaml
@@ -16348,6 +16348,14 @@ components:
           $ref: '#/components/schemas/SchedulePolicies'
         state:
           $ref: '#/components/schemas/ScheduleState'
+        timeSkippingConfig:
+          allOf:
+            - $ref: '#/components/schemas/TimeSkippingConfig'
+          description: |-
+            Time-skipping configuration for this schedule.
+             When enabled, the schedule advances its virtual time without waiting for
+             wall-clock time, causing scheduled actions to be triggered sooner.
+             This feature is intended for testing only.
     ScheduleAction:
       type: object
       properties:
@@ -16446,6 +16454,12 @@ components:
         stateSizeBytes:
           type: string
           description: Size of the schedule's internal state (including payloads) in bytes.
+        timeSkippingInfo:
+          allOf:
+            - $ref: '#/components/schemas/TimeSkippingInfo'
+          description: |-
+            Information about time skipping for this schedule.
+             If the schedule has never enabled time skipping, this will be unset.
     ScheduleListEntry:
       type: object
       properties:
@@ -17846,6 +17860,13 @@ components:
           allOf:
             - $ref: '#/components/schemas/PropagatedSerializationContext'
           description: Serialization context propagated from the Nexus caller that started this workflow.
+        timeSkippingStatePropagation:
+          allOf:
+            - $ref: '#/components/schemas/TimeSkippingStatePropagation'
+          description: |-
+            Time-skipping state propagated by the execution that started this workflow.
+             This field is intended for use by the Temporal server, for example when a schedule
+             starts a workflow, and is not intended to be set by external clients.
     StartWorkflowExecutionResponse:
       type: object
       properties:
diff --git a/temporal/api/schedule/v1/message.proto b/temporal/api/schedule/v1/message.proto
index 3a0a9344c..4c4086c88 100644
--- a/temporal/api/schedule/v1/message.proto
+++ b/temporal/api/schedule/v1/message.proto
@@ -352,6 +352,10 @@ message ScheduleInfo {
 
     // Size of the schedule's internal state (including payloads) in bytes.
     int64 state_size_bytes = 12;
+
+    // Information about time skipping for this schedule.
+    // If the schedule has never enabled time skipping, this will be unset.
+    temporal.api.common.v1.TimeSkippingInfo time_skipping_info = 13;
 }
 
 message Schedule {
@@ -359,6 +363,12 @@ message Schedule {
     ScheduleAction action = 2;
     SchedulePolicies policies = 3;
     ScheduleState state = 4;
+
+    // Time-skipping configuration for this schedule.
+    // When enabled, the schedule advances its virtual time without waiting for
+    // wall-clock time, causing scheduled actions to be triggered sooner.
+    // This feature is intended for testing only.
+    temporal.api.common.v1.TimeSkippingConfig time_skipping_config = 5;
 }
 
 // ScheduleListInfo is an abbreviated set of values from Schedule and ScheduleInfo
diff --git a/temporal/api/workflowservice/v1/request_response.proto b/temporal/api/workflowservice/v1/request_response.proto
index bfdac483a..f4b4cdb7f 100644
--- a/temporal/api/workflowservice/v1/request_response.proto
+++ b/temporal/api/workflowservice/v1/request_response.proto
@@ -219,8 +219,14 @@ message StartWorkflowExecutionRequest {
 
     // Time-skipping configuration. If not set, time skipping is disabled.
     temporal.api.common.v1.TimeSkippingConfig time_skipping_config = 29;
+
     // Serialization context propagated from the Nexus caller that started this workflow.
     temporal.api.nexus.v1.PropagatedSerializationContext propagated_nexus_serialization_context = 30;
+
+    // Time-skipping state propagated by the execution that started this workflow.
+    // This field is intended for use by the Temporal server, for example when a schedule
+    // starts a workflow, and is not intended to be set by external clients.
+    temporal.api.common.v1.TimeSkippingStatePropagation time_skipping_state_propagation = 31;
 }
 
 message StartWorkflowExecutionResponse {