diff --git a/server/src/main/java/io/druid/server/QueryResource.java b/server/src/main/java/io/druid/server/QueryResource.java
index 90284b22e4c1..6cd317592b91 100644
--- a/server/src/main/java/io/druid/server/QueryResource.java
+++ b/server/src/main/java/io/druid/server/QueryResource.java
@@ -185,6 +185,8 @@ public Response doPost(
       @Context final HttpServletRequest req // used to get request content-type, remote address and AuthorizationInfo
   ) throws IOException
   {
+    // Both startMs and startNs are needed: startMs is absolute time and startNs is high-resolution.
+    final long startMs = System.currentTimeMillis();
     final long startNs = System.nanoTime();
     Query<?> query = null;
     QueryToolChest toolChest = null;
@@ -322,7 +324,7 @@ public void write(OutputStream outputStream) throws IOException, WebApplicationE
 
                         requestLogger.log(
                             new RequestLogLine(
-                                new DateTime(TimeUnit.NANOSECONDS.toMillis(startNs)),
+                                new DateTime(startMs),
                                 req.getRemoteAddr(),
                                 theQuery,
                                 new QueryStats(
@@ -388,7 +390,7 @@ public void write(OutputStream outputStream) throws IOException, WebApplicationE
         queryMetrics.reportQueryTime(queryTimeNs).emit(emitter);
         requestLogger.log(
             new RequestLogLine(
-                new DateTime(TimeUnit.NANOSECONDS.toMillis(startNs)),
+                new DateTime(startMs),
                 req.getRemoteAddr(),
                 query,
                 new QueryStats(
@@ -433,7 +435,7 @@ public void write(OutputStream outputStream) throws IOException, WebApplicationE
         queryMetrics.reportQueryTime(queryTimeNs).emit(emitter);
         requestLogger.log(
             new RequestLogLine(
-                new DateTime(TimeUnit.NANOSECONDS.toMillis(startNs)),
+                new DateTime(startMs),
                 req.getRemoteAddr(),
                 query,
                 new QueryStats(ImmutableMap.<String, Object>of(