diff --git a/icu4c/source/test/intltest/tzregts.cpp b/icu4c/source/test/intltest/tzregts.cpp
index c8ea7e61aba..b13947873a8 100644
--- a/icu4c/source/test/intltest/tzregts.cpp
+++ b/icu4c/source/test/intltest/tzregts.cpp
@@ -952,7 +952,7 @@ void TimeZoneRegressionTest::TestJ449() {
     // Make sure we got valid zones
     if (zoneWith->getID(str) != UnicodeString(idWithLocaleData) ||
         zoneWithout->getID(str) != UnicodeString(idWithoutLocaleData)) {
-        errln("Fail: Unable to create zones");
+      errln(UnicodeString("Fail: Unable to create zones - wanted ") + idWithLocaleData + ", got " + zoneWith->getID(str) + ", and wanted " + idWithoutLocaleData + " but got " + zoneWithout->getID(str));
     } else {
         GregorianCalendar calWith(*zoneWith, status);
         GregorianCalendar calWithout(*zoneWithout, status);
diff --git a/icu4c/source/test/intltest/tztest.cpp b/icu4c/source/test/intltest/tztest.cpp
index 192ea23c798..4bcc9a975ed 100644
--- a/icu4c/source/test/intltest/tztest.cpp
+++ b/icu4c/source/test/intltest/tztest.cpp
@@ -279,7 +279,15 @@ TimeZoneTest::TestPRTOffset()
         errln("FAIL: TimeZone(PRT) is null");
     }
     else {
-        if (tz->getRawOffset() != (- 4 * millisPerHour)) errln("FAIL: Offset for PRT should be -4");
+      int32_t expectedHour = -4;
+      double expectedOffset = (((double)expectedHour) * millisPerHour);
+      double foundOffset = tz->getRawOffset();
+      int32_t foundHour = foundOffset / millisPerHour;
+      if (expectedOffset != foundOffset) {
+        errln("FAIL: Offset for PRT should be %d, found %d", expectedHour, foundHour);
+      } else {
+        logln("PASS: Offset for PRT should be %d, found %d", expectedHour, foundHour);
+      }
     }
     delete tz;
 }
@@ -356,11 +364,10 @@ TimeZoneTest::TestGetAvailableIDs913()
         // we own the array; the caller owns the contained strings (yuck)
         uprv_free(ids);
     }
-
     numIDs = -1;
     ids = TimeZone::createAvailableIDs("US", numIDs);
     if (ids == 0 || numIDs < 1) {
-        errln("FAIL: createAvailableIDs(US)");
+      errln("FAIL: createAvailableIDs(US) ids=%d, numIDs=%d", ids, numIDs);
     } else {
         UnicodeString buf("TimeZone::createAvailableIDs(US) = { ");
         for(i=0; i<numIDs; ++i) {
@@ -372,7 +379,6 @@ TimeZoneTest::TestGetAvailableIDs913()
         // we own the array; the caller owns the contained strings (yuck)
         uprv_free(ids);
     }
-
     UnicodeString str;
     UnicodeString *buf = new UnicodeString("TimeZone::createEnumeration() = { ");
     int32_t s_length;