diff --git a/site/en/rules/performance.md b/site/en/rules/performance.md
index 0f80fdb6673f2f..a59fc0bfc27595 100644
--- a/site/en/rules/performance.md
+++ b/site/en/rules/performance.md
@@ -278,6 +278,7 @@ Example:
   "otherData": {
     "build_id": "101bff9a-7243-4c1a-8503-9dc6ae4c3b05",
     "date": "Tue Jun 16 08:30:21 CEST 2020",
+    "profile_finish_ts": "1677666095162000",
     "output_base": "/usr/local/google/_bazel_johndoe/573d4be77eaa72b91a3dfaa497bf8cd0"
   },
   "traceEvents": [
diff --git a/src/main/java/com/google/devtools/build/lib/profiler/Profiler.java b/src/main/java/com/google/devtools/build/lib/profiler/Profiler.java
index a99ed7e4bc93f2..913a46d08e215b 100644
--- a/src/main/java/com/google/devtools/build/lib/profiler/Profiler.java
+++ b/src/main/java/com/google/devtools/build/lib/profiler/Profiler.java
@@ -39,6 +39,7 @@
 import java.lang.management.ManagementFactory;
 import java.nio.charset.StandardCharsets;
 import java.time.Duration;
+import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Date;
@@ -1086,13 +1087,15 @@ public void run() {
                 // The buffer size of 262144 is chosen at random.
                 new OutputStreamWriter(
                     new BufferedOutputStream(outStream, 262144), StandardCharsets.UTF_8))) {
+          var finishDate = Instant.now();
           writer.beginObject();
           writer.name("otherData");
           writer.beginObject();
           writer.name("bazel_version").value(BlazeVersionInfo.instance().getReleaseName());
           writer.name("build_id").value(buildID.toString());
           writer.name("output_base").value(outputBase);
-          writer.name("date").value(new Date().toString());
+          writer.name("date").value(finishDate.toString());
+          writer.name("profile_finish_ts").value(finishDate.getEpochSecond() * 1000);
           writer.endObject();
           writer.name("traceEvents");
           writer.beginArray();