diff --git a/libcxx/test/std/time/time.hms/time.hms.nonmembers/ostream.pass.cpp b/libcxx/test/std/time/time.hms/time.hms.nonmembers/ostream.pass.cpp
index 76d4b27cd7b0b..5bace05949e87 100644
--- a/libcxx/test/std/time/time.hms/time.hms.nonmembers/ostream.pass.cpp
+++ b/libcxx/test/std/time/time.hms/time.hms.nonmembers/ostream.pass.cpp
@@ -123,29 +123,28 @@ static void test() {
          SV("00:00:00,666666"));
 
   // ja_JP locale - floating points
-
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{
              std::chrono::duration<long double, std::femto>{1'234'567'890.123}}) == SV("00:00:00.000001234567890"));
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{
              std::chrono::duration<long double, std::pico>{1'234'567'890.123}}) == SV("00:00:00.001234567890"));
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{
              std::chrono::duration<long double, std::nano>{1'234'567'890.123}}) == SV("00:00:01.234567890"));
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::micro>{1'234'567.123}}) ==
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::micro>{1'234'567.123}}) ==
          SV("00:00:01.234567"));
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::milli>{123'456.123}}) ==
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::milli>{123'456.123}}) ==
          SV("00:02:03.456"));
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::centi>{12'345.123}}) ==
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::centi>{12'345.123}}) ==
          SV("00:02:03.45"));
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<float, std::deci>{1'234.123}}) ==
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<float, std::deci>{1'234.123}}) ==
          SV("00:02:03.4"));
 
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<float>{123.123}}) == SV("00:02:03"));
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<float>{123.123}}) == SV("00:02:03"));
 
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::deca>{-366.5}}) ==
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::deca>{-366.5}}) ==
          SV("-01:01:05"));
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::hecto>{-72.64}}) ==
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::hecto>{-72.64}}) ==
          SV("-02:01:04"));
-  assert(stream_c_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::kilo>{-86}}) ==
+  assert(stream_ja_JP_locale<CharT>(std::chrono::hh_mm_ss{std::chrono::duration<double, std::kilo>{-86}}) ==
          SV("-23:53:20"));
 }