diff --git a/Help/manual/cmake-instrumentation.7.rst b/Help/manual/cmake-instrumentation.7.rst
index 4163150280..661ebe92cc 100644
--- a/Help/manual/cmake-instrumentation.7.rst
+++ b/Help/manual/cmake-instrumentation.7.rst
@@ -607,10 +607,10 @@ Snippet files have a filename with the syntax
     ``maxRSS``
       Maximum resident set size in KiB.
 
-    ``userTimeUSec``
+    ``userTime``
       User CPU time in microseconds.
 
-    ``systemTimeUSec``
+    ``systemTime``
       System CPU time in microseconds.
 
     If the data could not be collected, this object is ``null``.
@@ -660,8 +660,8 @@ Example:
     "processMetrics" :
     {
       "maxRSS" : 21032,
-      "userTimeUSec" : 18000,
-      "systemTimeUSec" : 5000
+      "userTime" : 18000,
+      "systemTime" : 5000
     },
     "timeStart" : 1737053448177,
     "duration" : 31,
diff --git a/Help/manual/instrumentation/snippet-v1-schema.json b/Help/manual/instrumentation/snippet-v1-schema.json
index f10ba4f233..cf3bd3bc5d 100644
--- a/Help/manual/instrumentation/snippet-v1-schema.json
+++ b/Help/manual/instrumentation/snippet-v1-schema.json
@@ -400,8 +400,8 @@
             "type": "object",
             "required": [
               "maxRSS",
-              "userTimeUSec",
-              "systemTimeUSec"
+              "userTime",
+              "systemTime"
             ],
             "properties": {
               "maxRSS": {
@@ -409,12 +409,12 @@
                 "description": "Maximum resident set size reported for wrapped child processes, in KiB.",
                 "minimum": 0
               },
-              "userTimeUSec": {
+              "userTime": {
                 "type": "integer",
                 "description": "User CPU time reported for wrapped child processes, in microseconds.",
                 "minimum": 0
               },
-              "systemTimeUSec": {
+              "systemTime": {
                 "type": "integer",
                 "description": "System CPU time reported for wrapped child processes, in microseconds.",
                 "minimum": 0
diff --git a/Source/CTest/cmCTestLaunch.cxx b/Source/CTest/cmCTestLaunch.cxx
index 57aacc1f8e..551a149722 100644
--- a/Source/CTest/cmCTestLaunch.cxx
+++ b/Source/CTest/cmCTestLaunch.cxx
@@ -403,10 +403,10 @@ void cmCTestLaunch::WriteMetricsFile() const
   Json::Value processMetrics(Json::objectValue);
   processMetrics["maxRSS"] =
     static_cast<Json::Value::UInt64>(this->ChildResourceUsage->ru_maxrss);
-  processMetrics["userTimeUSec"] = static_cast<Json::Value::UInt64>(
+  processMetrics["userTime"] = static_cast<Json::Value::UInt64>(
     this->ChildResourceUsage->ru_utime.tv_sec * 1000000ULL +
     this->ChildResourceUsage->ru_utime.tv_usec);
-  processMetrics["systemTimeUSec"] = static_cast<Json::Value::UInt64>(
+  processMetrics["systemTime"] = static_cast<Json::Value::UInt64>(
     this->ChildResourceUsage->ru_stime.tv_sec * 1000000ULL +
     this->ChildResourceUsage->ru_stime.tv_usec);
   root["processMetrics"] = std::move(processMetrics);
diff --git a/Source/CTest/cmCTestRunTest.cxx b/Source/CTest/cmCTestRunTest.cxx
index e8a1fdf2a4..43ccbdaa76 100644
--- a/Source/CTest/cmCTestRunTest.cxx
+++ b/Source/CTest/cmCTestRunTest.cxx
@@ -1175,8 +1175,8 @@ void cmCTestRunTest::FinalizeTest(bool started)
           ProcessMetrics usage{};
           Json::Value const& processMetrics = root["processMetrics"];
           usage.ru_maxrss = processMetrics["maxRSS"].asLargestUInt();
-          auto userUSec = processMetrics["userTimeUSec"].asLargestUInt();
-          auto systemUSec = processMetrics["systemTimeUSec"].asLargestUInt();
+          auto userUSec = processMetrics["userTime"].asLargestUInt();
+          auto systemUSec = processMetrics["systemTime"].asLargestUInt();
           usage.ru_utime.tv_sec = static_cast<long>(userUSec / 1000000ULL);
           usage.ru_utime.tv_usec = static_cast<long>(userUSec % 1000000ULL);
           usage.ru_stime.tv_sec = static_cast<long>(systemUSec / 1000000ULL);
diff --git a/Source/cmInstrumentation.cxx b/Source/cmInstrumentation.cxx
index a57cf970df..28b6c00b70 100644
--- a/Source/cmInstrumentation.cxx
+++ b/Source/cmInstrumentation.cxx
@@ -1272,9 +1272,9 @@ Json::Value cmInstrumentation::ResourceUsageToJSON(ProcessMetrics const& usage)
 {
   Json::Value root(Json::objectValue);
   root["maxRSS"] = static_cast<Json::Value::UInt64>(usage.ru_maxrss);
-  root["userTimeUSec"] = static_cast<Json::Value::UInt64>(
+  root["userTime"] = static_cast<Json::Value::UInt64>(
     usage.ru_utime.tv_sec * 1000000ULL + usage.ru_utime.tv_usec);
-  root["systemTimeUSec"] = static_cast<Json::Value::UInt64>(
+  root["systemTime"] = static_cast<Json::Value::UInt64>(
     usage.ru_stime.tv_sec * 1000000ULL + usage.ru_stime.tv_usec);
   return root;
 }
diff --git a/Tests/RunCMake/Instrumentation/check-data-dir.cmake b/Tests/RunCMake/Instrumentation/check-data-dir.cmake
index a8f9ea05c4..6f10bdc836 100644
--- a/Tests/RunCMake/Instrumentation/check-data-dir.cmake
+++ b/Tests/RunCMake/Instrumentation/check-data-dir.cmake
@@ -36,8 +36,8 @@ foreach(snippet IN LISTS snippets)
     json_has_key("${snippet}" "${contents}" processMetrics)
     string(JSON process_metrics GET "${contents}" processMetrics)
     json_has_key("${snippet}" "${process_metrics}" maxRSS)
-    json_has_key("${snippet}" "${process_metrics}" userTimeUSec)
-    json_has_key("${snippet}" "${process_metrics}" systemTimeUSec)
+    json_has_key("${snippet}" "${process_metrics}" userTime)
+    json_has_key("${snippet}" "${process_metrics}" systemTime)
     set(process_metrics_case "")
     if (filename MATCHES "^custom-")
       string(JSON outputs ERROR_VARIABLE noOutputs GET "${contents}" outputs)
@@ -47,10 +47,10 @@ foreach(snippet IN LISTS snippets)
         set(process_metrics_case "cpu")
       endif()
     elseif (filename MATCHES "^test-")
-      string(JSON user_time_usec GET "${process_metrics}" userTimeUSec)
+      string(JSON user_time_usec GET "${process_metrics}" userTime)
       if (user_time_usec LESS 0)
         json_error("${snippet}"
-          "Expected process-metrics test userTimeUSec >= 0, got: ${user_time_usec}"
+          "Expected process-metrics test userTime >= 0, got: ${user_time_usec}"
         )
       endif()
       string(JSON test_name GET "${contents}" testName)
@@ -78,8 +78,8 @@ foreach(snippet IN LISTS snippets)
         )
       endif()
     elseif (process_metrics_case STREQUAL "cpu")
-      string(JSON user_time_usec GET "${process_metrics}" userTimeUSec)
-      string(JSON system_time_usec GET "${process_metrics}" systemTimeUSec)
+      string(JSON user_time_usec GET "${process_metrics}" userTime)
+      string(JSON system_time_usec GET "${process_metrics}" systemTime)
       math(EXPR total_cpu_usec "${user_time_usec} + ${system_time_usec}")
       if (total_cpu_usec LESS 10000)
         json_error("${snippet}"