diff --git a/polygerrit-ui/app/BUILD b/polygerrit-ui/app/BUILD
index 5b3085623c..c7357462e2 100644
--- a/polygerrit-ui/app/BUILD
+++ b/polygerrit-ui/app/BUILD
@@ -65,6 +65,8 @@ genrule2(
         ("tar -hcf- $(locations :pg_code) |" +
          " tar --strip-components=2 -C $$TMP/ -xf-"),
         "cd $$TMP",
+        "TZ=UTC",
+        "export TZ",
         "find . -exec touch -t 198001010000 '{}' ';'",
         "zip -rq $$ROOT/$@ *",
     ]),
diff --git a/tools/bzl/javadoc.bzl b/tools/bzl/javadoc.bzl
index 97f291b118..f49c8815d7 100644
--- a/tools/bzl/javadoc.bzl
+++ b/tools/bzl/javadoc.bzl
@@ -28,6 +28,8 @@ def _impl(ctx):
   source = ctx.outputs.zip.path + ".source"
   external_docs = ["http://docs.oracle.com/javase/8/docs/api"] + ctx.attr.external_docs
   cmd = [
+      "TZ=UTC",
+      "export TZ",
       "rm -rf %s" % source,
       "mkdir %s" % source,
       " && ".join(["unzip -qud %s %s" % (source, j.path) for j in source_jars]),
@@ -50,7 +52,7 @@ def _impl(ctx):
         ":".join(transitive_jar_paths),
         "-d %s" % dir]),
     "find %s -exec touch -t 198001010000 '{}' ';'" % dir,
-    "(cd %s && zip -qr ../%s *)" % (dir, ctx.outputs.zip.basename),
+    "(cd %s && zip -Xqr ../%s *)" % (dir, ctx.outputs.zip.basename),
   ]
   ctx.actions.run_shell(
       inputs = list(transitive_jar_set) + list(source_jars) + ctx.files._jdk,
diff --git a/tools/bzl/js.bzl b/tools/bzl/js.bzl
index 945b8e17e9..2796f64257 100644
--- a/tools/bzl/js.bzl
+++ b/tools/bzl/js.bzl
@@ -75,13 +75,15 @@ def _bower_archive(ctx):
 
   _bash(ctx, " && " .join([
     "TMP=$(mktemp -d || mktemp -d -t bazel-tmp)",
+    "TZ=UTC",
+    "export UTC",
     "cd $TMP",
     "mkdir bower_components",
     "cd bower_components",
     "unzip %s" % ctx.path(download_name),
     "cd ..",
     "find . -exec touch -t 198001010000 '{}' ';'",
-    "zip -r %s bower_components" % renamed_name,
+    "zip -Xr %s bower_components" % renamed_name,
     "cd ..",
     "rm -rf ${TMP}",
   ]))
@@ -153,11 +155,13 @@ def _js_component(ctx):
     name = name[:-4]
   dest = "%s/%s" % (dir, name)
   cmd = " && ".join([
+    "TZ=UTC",
+    "export TZ",
     "mkdir -p %s" % dest,
     "cp %s %s/" % (' '.join([s.path for s in ctx.files.srcs]), dest),
     "cd %s" % dir,
     "find . -exec touch -t 198001010000 '{}' ';'",
-    "zip -qr ../%s *" %  ctx.outputs.zip.basename
+    "zip -Xqr ../%s *" %  ctx.outputs.zip.basename
   ])
 
   ctx.actions.run_shell(
@@ -232,13 +236,15 @@ def _bower_component_bundle_impl(ctx):
     outputs=[out_zip],
     command=" && ".join([
       "p=$PWD",
+      "TZ=UTC",
+      "export TZ",
       "rm -rf %s.dir" % out_zip.path,
       "mkdir -p %s.dir/bower_components" % out_zip.path,
       "cd %s.dir/bower_components" % out_zip.path,
       "for z in %s; do unzip -q $p/$z ; done" % " ".join(sorted([z.path for z in zips])),
       "cd ..",
       "find . -exec touch -t 198001010000 '{}' ';'",
-      "zip -qr $p/%s bower_components/*" % out_zip.path,
+      "zip -Xqr $p/%s bower_components/*" % out_zip.path,
     ]),
     mnemonic="BowerCombine")
 
diff --git a/tools/bzl/pkg_war.bzl b/tools/bzl/pkg_war.bzl
index a8ccbee39c..d6a4c7816e 100644
--- a/tools/bzl/pkg_war.bzl
+++ b/tools/bzl/pkg_war.bzl
@@ -55,9 +55,11 @@ def _add_file(in_file, output):
 def _make_war(input_dir, output):
   return '(%s)' % ' && '.join([
     'root=$(pwd)',
+    'TZ=UTC',
+    'export TZ',
     'cd %s' % input_dir,
     "find . -exec touch -t 198001010000 '{}' ';' 2> /dev/null",
-    'zip -9qr ${root}/%s .' % (output.path),
+    'zip -X -9qr ${root}/%s .' % (output.path),
   ])
 
 def _war_impl(ctx):