diff --git a/test/TestUtils.cpp b/test/TestUtils.cpp
new file mode 100644
index 0000000..fc345f2
--- /dev/null
+++ b/test/TestUtils.cpp
@@ -0,0 +1,63 @@
+#include "utils.hpp"
+
+#include <gtest/gtest.h>
+
+namespace phosphor
+{
+namespace time
+{
+namespace utils
+{
+
+TEST(TestUtil, strToMode)
+{
+    EXPECT_EQ(Mode::NTP, strToMode("NTP"));
+    EXPECT_EQ(Mode::MANUAL, strToMode("MANUAL"));
+
+    // All unrecognized strings result in assertion
+    // TODO: use EXPECT_THROW once the code uses elog
+    EXPECT_DEATH(strToMode(""), "");
+    EXPECT_DEATH(strToMode("Manual"), "");
+    EXPECT_DEATH(strToMode("whatever"), "");
+}
+
+
+TEST(TestUtil, strToOwner)
+{
+    EXPECT_EQ(Owner::BMC, strToOwner("BMC"));
+    EXPECT_EQ(Owner::HOST, strToOwner("HOST"));
+    EXPECT_EQ(Owner::SPLIT, strToOwner("SPLIT"));
+    EXPECT_EQ(Owner::BOTH, strToOwner("BOTH"));
+
+    // All unrecognized strings result in assertion
+    // TODO: use EXPECT_THROW once the code uses elog
+    EXPECT_DEATH(strToOwner(""), "");
+    EXPECT_DEATH(strToOwner("Split"), "");
+    EXPECT_DEATH(strToOwner("xyz"), "");
+}
+
+TEST(TestUtil, modeToStr)
+{
+    EXPECT_EQ("NTP", modeToStr(Mode::NTP));
+    EXPECT_EQ("MANUAL", modeToStr(Mode::MANUAL));
+
+    // All unrecognized enums result in assertion
+    // TODO: use EXPECT_THROW once the code uses elog
+    EXPECT_DEATH(modeToStr(static_cast<Mode>(100)), "");
+}
+
+TEST(TestUtil, ownerToStr)
+{
+    EXPECT_EQ("BMC", ownerToStr(Owner::BMC));
+    EXPECT_EQ("HOST", ownerToStr(Owner::HOST));
+    EXPECT_EQ("SPLIT", ownerToStr(Owner::SPLIT));
+    EXPECT_EQ("BOTH", ownerToStr(Owner::BOTH));
+
+    // All unrecognized enums result in assertion
+    // TODO: use EXPECT_THROW once the code uses elog
+    EXPECT_DEATH(ownerToStr(static_cast<Owner>(100)), "");
+}
+
+} // namespace utils
+} // namespace time
+} // namespace phosphor