diff --git a/include/utils/ZipFileRO.h b/include/utils/ZipFileRO.h
index 3a99979..547e36a 100644
--- a/include/utils/ZipFileRO.h
+++ b/include/utils/ZipFileRO.h
@@ -38,6 +38,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <time.h>
 
 namespace android {
 
@@ -174,6 +175,20 @@
         size_t uncompLen, size_t compLen);
 
     /*
+     * Utility function to convert ZIP's time format to a timespec struct.
+     */
+    static inline void zipTimeToTimespec(long when, struct tm* timespec) {
+        const long date = when >> 16;
+        timespec->tm_year = ((date >> 9) & 0x7F) + 80; // Zip is years since 1980
+        timespec->tm_mon = (date >> 5) & 0x0F;
+        timespec->tm_mday = date & 0x1F;
+
+        timespec->tm_hour = (when >> 11) & 0x1F;
+        timespec->tm_min = (when >> 5) & 0x3F;
+        timespec->tm_sec = (when & 0x1F) << 1;
+    }
+
+    /*
      * Some basic functions for raw data manipulation.  "LE" means
      * Little Endian.
      */
diff --git a/libs/ui/tests/Android.mk b/libs/ui/tests/Android.mk
index 693a32a..700b604 100644
--- a/libs/ui/tests/Android.mk
+++ b/libs/ui/tests/Android.mk
@@ -45,4 +45,4 @@
 )
 
 # Build the manual test programs.
-include $(call all-subdir-makefiles)
+include $(call all-makefiles-under, $(LOCAL_PATH))
diff --git a/libs/utils/tests/Android.mk b/libs/utils/tests/Android.mk
index 8726a53..b97f52f 100644
--- a/libs/utils/tests/Android.mk
+++ b/libs/utils/tests/Android.mk
@@ -8,7 +8,8 @@
 	ObbFile_test.cpp \
 	Looper_test.cpp \
 	String8_test.cpp \
-	Unicode_test.cpp
+	Unicode_test.cpp \
+	ZipFileRO_test.cpp \
 
 shared_libraries := \
 	libz \
diff --git a/libs/utils/tests/ZipFileRO_test.cpp b/libs/utils/tests/ZipFileRO_test.cpp
new file mode 100644
index 0000000..7a1d0bd
--- /dev/null
+++ b/libs/utils/tests/ZipFileRO_test.cpp
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "ZipFileRO_test"
+#include <utils/Log.h>
+#include <utils/ZipFileRO.h>
+
+#include <gtest/gtest.h>
+
+#include <fcntl.h>
+#include <string.h>
+
+namespace android {
+
+class ZipFileROTest : public testing::Test {
+protected:
+    virtual void SetUp() {
+    }
+
+    virtual void TearDown() {
+    }
+};
+
+TEST_F(ZipFileROTest, ZipTimeConvertSuccess) {
+    struct tm t;
+
+    // 2011-06-29 14:40:40
+    long when = 0x3EDD7514;
+
+    ZipFileRO::zipTimeToTimespec(when, &t);
+
+    EXPECT_EQ(2011, t.tm_year + 1900)
+            << "Year was improperly converted.";
+
+    EXPECT_EQ(6, t.tm_mon)
+            << "Month was improperly converted.";
+
+    EXPECT_EQ(29, t.tm_mday)
+            << "Day was improperly converted.";
+
+    EXPECT_EQ(14, t.tm_hour)
+            << "Hour was improperly converted.";
+
+    EXPECT_EQ(40, t.tm_min)
+            << "Minute was improperly converted.";
+
+    EXPECT_EQ(40, t.tm_sec)
+            << "Second was improperly converted.";
+}
+
+}