diff --git a/server/src/test/java/org/elasticsearch/common/rounding/DateTimeUnitTests.java b/server/src/test/java/org/elasticsearch/common/rounding/DateTimeUnitTests.java
index f188eb4cac6f4..6c92d3d1f9a19 100644
--- a/server/src/test/java/org/elasticsearch/common/rounding/DateTimeUnitTests.java
+++ b/server/src/test/java/org/elasticsearch/common/rounding/DateTimeUnitTests.java
@@ -19,11 +19,6 @@
 package org.elasticsearch.common.rounding;
 
 import org.elasticsearch.test.ESTestCase;
-import org.joda.time.DateTimeZone;
-
-import java.time.Instant;
-import java.time.ZoneId;
-import java.time.ZonedDateTime;
 
 import static org.elasticsearch.common.rounding.DateTimeUnit.DAY_OF_MONTH;
 import static org.elasticsearch.common.rounding.DateTimeUnit.HOUR_OF_DAY;
@@ -33,7 +28,6 @@
 import static org.elasticsearch.common.rounding.DateTimeUnit.SECOND_OF_MINUTE;
 import static org.elasticsearch.common.rounding.DateTimeUnit.WEEK_OF_WEEKYEAR;
 import static org.elasticsearch.common.rounding.DateTimeUnit.YEAR_OF_CENTURY;
-import static org.hamcrest.Matchers.is;
 
 public class DateTimeUnitTests extends ESTestCase {
 
@@ -65,17 +59,4 @@ public void testEnumIds() {
         assertEquals(8, SECOND_OF_MINUTE.id());
         assertEquals(SECOND_OF_MINUTE, DateTimeUnit.resolve((byte) 8));
     }
-
-    public void testConversion() {
-        long millis = randomLongBetween(0, Instant.now().toEpochMilli());
-        DateTimeZone zone = randomDateTimeZone();
-        ZoneId zoneId = zone.toTimeZone().toZoneId();
-
-        int offsetSeconds = zoneId.getRules().getOffset(Instant.ofEpochMilli(millis)).getTotalSeconds();
-        long parsedMillisJavaTime = ZonedDateTime.ofInstant(Instant.ofEpochMilli(millis), zoneId)
-            .minusSeconds(offsetSeconds).toInstant().toEpochMilli();
-
-        long parsedMillisJodaTime = zone.convertLocalToUTC(millis, true);
-        assertThat(parsedMillisJavaTime, is(parsedMillisJodaTime));
-    }
 }