diff --git a/icu4j/build.xml b/icu4j/build.xml
index b520e61ccb..1238c4c032 100644
--- a/icu4j/build.xml
+++ b/icu4j/build.xml
@@ -103,6 +103,13 @@
         </antcall>
     </target>
 
+    <target name="timeZoneCheck" description="Run the complete test for TimeZoneRoundTripAll">
+        <antcall target="_runCheck">
+            <param name="runcheck.arg" value="-n -e10 Core/Format/DateFormat/TimeZoneFormatTest"/>
+            <param name="runcheck.jvmarg" value="-DTimeZoneRoundTripAll=true"/>
+        </antcall>
+    </target>
+
     <target name="secureCheck" description="Run the secure (applet-like) ICU4J test suite">
         <antcall target="_runCheck">
             <param name="runcheck.arg" value="-n -w"/>
@@ -1025,4 +1032,4 @@
                 todir="${module.tests.dir}/com/ibm/icu/dev/data"/>
     </target>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/icu4j/main/shared/data/icudata.jar b/icu4j/main/shared/data/icudata.jar
index 16ffec5ffd..f06f80aee8 100755
--- a/icu4j/main/shared/data/icudata.jar
+++ b/icu4j/main/shared/data/icudata.jar
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6c32bde0e44dee0baac62f64daf9a0d617c761a10603b4a46764a1cfe2829a49
-size 7212598
+oid sha256:42519c352c90321d48a65a3a956596642c305477597d43b349861b6f658a2d0a
+size 7212644
diff --git a/icu4j/main/shared/data/testdata.jar b/icu4j/main/shared/data/testdata.jar
index 85db35be42..349a9fb41a 100755
--- a/icu4j/main/shared/data/testdata.jar
+++ b/icu4j/main/shared/data/testdata.jar
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6a166739d612e8a89c80dcaa4053d56e9b653dab2f2f886a6b4dd0592db772ca
-size 773389
+oid sha256:bfd9f10fc4a9cfe46d6af81b5800f3d55a3d80e5e85d7f1a57a8c856483a963b
+size 776398