diff --git a/java-util/src/main/java/org/apache/druid/java/util/emitter/core/ConcurrentTimeCounter.java b/java-util/src/main/java/org/apache/druid/java/util/emitter/core/ConcurrentTimeCounter.java
index d4c5435236d..a71b2fc4ed6 100644
--- a/java-util/src/main/java/org/apache/druid/java/util/emitter/core/ConcurrentTimeCounter.java
+++ b/java-util/src/main/java/org/apache/druid/java/util/emitter/core/ConcurrentTimeCounter.java
@@ -21,6 +21,7 @@ package org.apache.druid.java.util.emitter.core;
 
 import com.google.common.primitives.UnsignedInts;
 
+import javax.annotation.Nullable;
 import java.util.concurrent.atomic.AtomicLong;
 
 /**
@@ -70,18 +71,34 @@ public class ConcurrentTimeCounter
     return timeSumAndCount.getAndSet(0L);
   }
 
-  public int getAndResetMaxTime()
+  /**
+   * Returns the max time {@link #add}ed since the previous call to this method or since the creation of this object,
+   * or null if no times were added.
+   */
+  @Nullable
+  public Integer getAndResetMaxTime()
   {
     long max = this.max.getAndSet(-1);
-    // If max < 0, means no times added yet, then return 0
-    return max >= 0 ? (int) max : 0;
+    if (max >= 0) {
+      return (int) max;
+    } else {
+      return null;
+    }
   }
 
-  public int getAndResetMinTime()
+  /**
+   * Returns the min time {@link #add}ed since the previous call to this method or since the creation of this object,
+   * or null if no times were added.
+   */
+  @Nullable
+  public Integer getAndResetMinTime()
   {
     long min = this.min.getAndSet(-1);
-    // If min < 0, means no times added yet, then return 0
-    return min >= 0 ? (int) min : 0;
+    if (min >= 0) {
+      return (int) min;
+    } else {
+      return null;
+    }
   }
 
   public static int timeSum(long timeSumAndCount)
diff --git a/java-util/src/main/java/org/apache/druid/java/util/metrics/HttpPostEmitterMonitor.java b/java-util/src/main/java/org/apache/druid/java/util/metrics/HttpPostEmitterMonitor.java
index de40f0ec652..a8fd802194d 100644
--- a/java-util/src/main/java/org/apache/druid/java/util/metrics/HttpPostEmitterMonitor.java
+++ b/java-util/src/main/java/org/apache/druid/java/util/metrics/HttpPostEmitterMonitor.java
@@ -75,10 +75,20 @@ public class HttpPostEmitterMonitor extends FeedDefiningMonitor
   private void emitTimeCounterMetrics(ServiceEmitter emitter, ConcurrentTimeCounter timeCounter, String metricNameBase)
   {
     long timeSumAndCount = timeCounter.getTimeSumAndCountAndReset();
-    emitter.emit(builder.build(metricNameBase + "timeMsSum", ConcurrentTimeCounter.timeSum(timeSumAndCount)));
-    emitter.emit(builder.build(metricNameBase + "count", ConcurrentTimeCounter.count(timeSumAndCount)));
-    emitter.emit(builder.build(metricNameBase + "maxTimeMs", timeCounter.getAndResetMaxTime()));
-    emitter.emit(builder.build(metricNameBase + "minTimeMs", timeCounter.getAndResetMinTime()));
+    int timeSum = ConcurrentTimeCounter.timeSum(timeSumAndCount);
+    int count = ConcurrentTimeCounter.count(timeSumAndCount);
+    if (count != 0) {
+      emitter.emit(builder.build(metricNameBase + "timeMsSum", timeSum));
+      emitter.emit(builder.build(metricNameBase + "count", count));
+    }
+    Integer maxTime = timeCounter.getAndResetMaxTime();
+    if (maxTime != null) {
+      emitter.emit(builder.build(metricNameBase + "maxTimeMs", maxTime));
+    }
+    Integer minTime = timeCounter.getAndResetMinTime();
+    if (minTime != null) {
+      emitter.emit(builder.build(metricNameBase + "minTimeMs", minTime));
+    }
   }
 
   @Override