diff --git a/absl/container/fixed_array_benchmark.cc b/absl/container/fixed_array_benchmark.cc
index ff56f466c9b0b79e5d6992ce56b55ed722ef1150..3c7a5a723450e7f1e085ceaa91fdb960e7433672 100644
--- a/absl/container/fixed_array_benchmark.cc
+++ b/absl/container/fixed_array_benchmark.cc
@@ -1,4 +1,4 @@
-// Copyright 2017 The Abseil Authors.
+// Copyright 2019 The Abseil Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -12,12 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "absl/container/fixed_array.h"
-
 #include <stddef.h>
+
 #include <string>
 
 #include "benchmark/benchmark.h"
+#include "absl/container/fixed_array.h"
 
 namespace {
 
@@ -25,8 +25,9 @@ namespace {
 // set an int to a constant..
 class SimpleClass {
  public:
-  SimpleClass() : i(3) { }
+  SimpleClass() : i(3) {}
   ~SimpleClass() { i = 0; }
+
  private:
   int i;
 };
diff --git a/absl/container/fixed_array_exception_safety_test.cc b/absl/container/fixed_array_exception_safety_test.cc
index 826eca612dd16c2a51b4e178641b8dd15eea11c5..9984a5e2ae41173e58c652c52179cee2092608b9 100644
--- a/absl/container/fixed_array_exception_safety_test.cc
+++ b/absl/container/fixed_array_exception_safety_test.cc
@@ -1,4 +1,4 @@
-// Copyright 2017 The Abseil Authors.
+// Copyright 2019 The Abseil Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -14,10 +14,9 @@
 
 #include <initializer_list>
 
-#include "absl/container/fixed_array.h"
-
 #include "gtest/gtest.h"
 #include "absl/base/internal/exception_safety_testing.h"
+#include "absl/container/fixed_array.h"
 
 namespace absl {
 
diff --git a/absl/container/fixed_array_test.cc b/absl/container/fixed_array_test.cc
index a4f2498b7a881003242a5f64770783859548cda8..2b1cf47eacb8ade9639ba61be51e645ff3b10877 100644
--- a/absl/container/fixed_array_test.cc
+++ b/absl/container/fixed_array_test.cc
@@ -1,4 +1,4 @@
-// Copyright 2017 The Abseil Authors.
+// Copyright 2019 The Abseil Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -15,6 +15,7 @@
 #include "absl/container/fixed_array.h"
 
 #include <stdio.h>
+
 #include <cstring>
 #include <list>
 #include <memory>
@@ -42,11 +43,7 @@ static bool IsOnStack(const ArrayType& a) {
 
 class ConstructionTester {
  public:
-  ConstructionTester()
-      : self_ptr_(this),
-        value_(0) {
-    constructions++;
-  }
+  ConstructionTester() : self_ptr_(this), value_(0) { constructions++; }
   ~ConstructionTester() {
     assert(self_ptr_ == this);
     self_ptr_ = nullptr;
@@ -58,9 +55,7 @@ class ConstructionTester {
   static int constructions;
   static int destructions;
 
-  void CheckConstructed() {
-    assert(self_ptr_ == this);
-  }
+  void CheckConstructed() { assert(self_ptr_ == this); }
 
   void set(int value) { value_ = value; }
   int get() { return value_; }
@@ -160,13 +155,13 @@ TEST(FixedArrayTest, SmallObjects) {
     // same amount of stack space
     absl::FixedArray<int> array1(0);
     absl::FixedArray<char> array2(0);
-    EXPECT_LE(sizeof(array1), sizeof(array2)+100);
-    EXPECT_LE(sizeof(array2), sizeof(array1)+100);
+    EXPECT_LE(sizeof(array1), sizeof(array2) + 100);
+    EXPECT_LE(sizeof(array2), sizeof(array1) + 100);
   }
 
   {
     // Ensure that vectors are properly constructed inside a fixed array.
-    absl::FixedArray<std::vector<int> > array(2);
+    absl::FixedArray<std::vector<int>> array(2);
     EXPECT_EQ(0, array[0].size());
     EXPECT_EQ(0, array[1].size());
   }
@@ -270,8 +265,8 @@ static void TestArray(int n) {
       array.data()[i].set(i + 1);
     }
     for (int i = 0; i < n; i++) {
-      EXPECT_THAT(array[i].get(), i+1);
-      EXPECT_THAT(array.data()[i].get(), i+1);
+      EXPECT_THAT(array[i].get(), i + 1);
+      EXPECT_THAT(array.data()[i].get(), i + 1);
     }
   }  // Close scope containing 'array'.
 
@@ -296,7 +291,7 @@ static void TestArrayOfArrays(int n) {
 
     ASSERT_EQ(array.size(), n);
     ASSERT_EQ(array.memsize(),
-             sizeof(ConstructionTester) * elements_per_inner_array * n);
+              sizeof(ConstructionTester) * elements_per_inner_array * n);
     ASSERT_EQ(array.begin() + n, array.end());
 
     // Check that all elements were constructed
@@ -316,7 +311,7 @@ static void TestArrayOfArrays(int n) {
     }
     for (int i = 0; i < n; i++) {
       for (int j = 0; j < elements_per_inner_array; j++) {
-        ASSERT_EQ((array[i])[j].get(),  i * elements_per_inner_array + j);
+        ASSERT_EQ((array[i])[j].get(), i * elements_per_inner_array + j);
         ASSERT_EQ((array.data()[i])[j].get(), i * elements_per_inner_array + j);
       }
     }
@@ -329,8 +324,7 @@ static void TestArrayOfArrays(int n) {
     }
     for (int i = 0; i < n; i++) {
       for (int j = 0; j < elements_per_inner_array; j++) {
-        ASSERT_EQ((array[i])[j].get(),
-                  (i + 1) * elements_per_inner_array + j);
+        ASSERT_EQ((array[i])[j].get(), (i + 1) * elements_per_inner_array + j);
         ASSERT_EQ((array.data()[i])[j].get(),
                   (i + 1) * elements_per_inner_array + j);
       }
@@ -343,7 +337,7 @@ static void TestArrayOfArrays(int n) {
 }
 
 TEST(IteratorConstructorTest, NonInline) {
-  int const kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
+  int const kInput[] = {2, 3, 5, 7, 11, 13, 17};
   absl::FixedArray<int, ABSL_ARRAYSIZE(kInput) - 1> const fixed(
       kInput, kInput + ABSL_ARRAYSIZE(kInput));
   ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size());
@@ -353,7 +347,7 @@ TEST(IteratorConstructorTest, NonInline) {
 }
 
 TEST(IteratorConstructorTest, Inline) {
-  int const kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
+  int const kInput[] = {2, 3, 5, 7, 11, 13, 17};
   absl::FixedArray<int, ABSL_ARRAYSIZE(kInput)> const fixed(
       kInput, kInput + ABSL_ARRAYSIZE(kInput));
   ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size());
@@ -363,8 +357,8 @@ TEST(IteratorConstructorTest, Inline) {
 }
 
 TEST(IteratorConstructorTest, NonPod) {
-  char const* kInput[] =
-      { "red", "orange", "yellow", "green", "blue", "indigo", "violet" };
+  char const* kInput[] = {"red",  "orange", "yellow", "green",
+                          "blue", "indigo", "violet"};
   absl::FixedArray<std::string> const fixed(kInput,
                                             kInput + ABSL_ARRAYSIZE(kInput));
   ASSERT_EQ(ABSL_ARRAYSIZE(kInput), fixed.size());
@@ -381,7 +375,7 @@ TEST(IteratorConstructorTest, FromEmptyVector) {
 }
 
 TEST(IteratorConstructorTest, FromNonEmptyVector) {
-  int const kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
+  int const kInput[] = {2, 3, 5, 7, 11, 13, 17};
   std::vector<int> const items(kInput, kInput + ABSL_ARRAYSIZE(kInput));
   absl::FixedArray<int> const fixed(items.begin(), items.end());
   ASSERT_EQ(items.size(), fixed.size());
@@ -391,7 +385,7 @@ TEST(IteratorConstructorTest, FromNonEmptyVector) {
 }
 
 TEST(IteratorConstructorTest, FromBidirectionalIteratorRange) {
-  int const kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
+  int const kInput[] = {2, 3, 5, 7, 11, 13, 17};
   std::list<int> const items(kInput, kInput + ABSL_ARRAYSIZE(kInput));
   absl::FixedArray<int> const fixed(items.begin(), items.end());
   EXPECT_THAT(fixed, testing::ElementsAreArray(kInput));
@@ -508,9 +502,8 @@ struct PickyDelete {
 
 TEST(FixedArrayTest, UsesGlobalAlloc) { absl::FixedArray<PickyDelete, 0> a(5); }
 
-
 TEST(FixedArrayTest, Data) {
-  static const int kInput[] = { 2, 3, 5, 7, 11, 13, 17 };
+  static const int kInput[] = {2, 3, 5, 7, 11, 13, 17};
   absl::FixedArray<int> fa(std::begin(kInput), std::end(kInput));
   EXPECT_EQ(fa.data(), &*fa.begin());
   EXPECT_EQ(fa.data(), &fa[0]);
@@ -824,7 +817,7 @@ TEST(AllocatorSupportTest, SizeValAllocConstructor) {
 #ifdef ADDRESS_SANITIZER
 TEST(FixedArrayTest, AddressSanitizerAnnotations1) {
   absl::FixedArray<int, 32> a(10);
-  int *raw = a.data();
+  int* raw = a.data();
   raw[0] = 0;
   raw[9] = 0;
   EXPECT_DEATH(raw[-2] = 0, "container-overflow");
@@ -835,7 +828,7 @@ TEST(FixedArrayTest, AddressSanitizerAnnotations1) {
 
 TEST(FixedArrayTest, AddressSanitizerAnnotations2) {
   absl::FixedArray<char, 17> a(12);
-  char *raw = a.data();
+  char* raw = a.data();
   raw[0] = 0;
   raw[11] = 0;
   EXPECT_DEATH(raw[-7] = 0, "container-overflow");
@@ -846,7 +839,7 @@ TEST(FixedArrayTest, AddressSanitizerAnnotations2) {
 
 TEST(FixedArrayTest, AddressSanitizerAnnotations3) {
   absl::FixedArray<uint64_t, 20> a(20);
-  uint64_t *raw = a.data();
+  uint64_t* raw = a.data();
   raw[0] = 0;
   raw[19] = 0;
   EXPECT_DEATH(raw[-1] = 0, "container-overflow");
@@ -855,7 +848,7 @@ TEST(FixedArrayTest, AddressSanitizerAnnotations3) {
 
 TEST(FixedArrayTest, AddressSanitizerAnnotations4) {
   absl::FixedArray<ThreeInts> a(10);
-  ThreeInts *raw = a.data();
+  ThreeInts* raw = a.data();
   raw[0] = ThreeInts();
   raw[9] = ThreeInts();
   // Note: raw[-1] is pointing to 12 bytes before the container range. However,
diff --git a/absl/container/inlined_vector_test.cc b/absl/container/inlined_vector_test.cc
index 60fe89b28aee3a57e230066253722a72a949bf8a..76c470f3471b431eeb5d7482bda5f7fdd57d9724 100644
--- a/absl/container/inlined_vector_test.cc
+++ b/absl/container/inlined_vector_test.cc
@@ -1,4 +1,4 @@
-// Copyright 2017 The Abseil Authors.
+// Copyright 2019 The Abseil Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -76,12 +76,9 @@ TYPED_TEST_SUITE_P(InstanceTest);
 // destroyed in the erase(begin, end) test.
 class RefCounted {
  public:
-  RefCounted(int value, int* count) : value_(value), count_(count) {
-    Ref();
-  }
+  RefCounted(int value, int* count) : value_(value), count_(count) { Ref(); }
 
-  RefCounted(const RefCounted& v)
-      : value_(v.value_), count_(v.count_) {
+  RefCounted(const RefCounted& v) : value_(v.value_), count_(v.count_) {
     Ref();
   }
 
@@ -290,7 +287,7 @@ TEST(RefCountedVec, EraseBeginEnd) {
         }
 
         // Check that the elements at the end are preserved.
-        for (int i = erase_end; i< len; ++i) {
+        for (int i = erase_end; i < len; ++i) {
           EXPECT_EQ(1, counts[i]);
         }
       }
@@ -552,10 +549,10 @@ TEST(IntVec, Resize) {
     static const int kResizeElem = 1000000;
     for (int k = 0; k < 10; k++) {
       // Enlarging resize
-      v.resize(len+k, kResizeElem);
-      EXPECT_EQ(len+k, v.size());
-      EXPECT_LE(len+k, v.capacity());
-      for (int i = 0; i < len+k; i++) {
+      v.resize(len + k, kResizeElem);
+      EXPECT_EQ(len + k, v.size());
+      EXPECT_LE(len + k, v.capacity());
+      for (int i = 0; i < len + k; i++) {
         if (i < len) {
           EXPECT_EQ(i, v[i]);
         } else {
@@ -866,7 +863,7 @@ TYPED_TEST_P(InstanceTest, Swap) {
       auto min_len = std::min(l1, l2);
       auto max_len = std::max(l1, l2);
       for (int i = 0; i < l1; i++) a.push_back(Instance(i));
-      for (int i = 0; i < l2; i++) b.push_back(Instance(100+i));
+      for (int i = 0; i < l2; i++) b.push_back(Instance(100 + i));
       EXPECT_EQ(tracker.instances(), l1 + l2);
       tracker.ResetCopiesMovesSwaps();
       {
@@ -934,7 +931,7 @@ TEST(IntVec, EqualAndNotEqual) {
     EXPECT_FALSE(a == b);
     EXPECT_TRUE(a != b);
 
-    b[i] = b[i] - 1;    // Back to before
+    b[i] = b[i] - 1;  // Back to before
     EXPECT_TRUE(a == b);
     EXPECT_FALSE(a != b);
   }
@@ -1001,7 +998,7 @@ TYPED_TEST_P(InstanceTest, CountConstructorsDestructors) {
 
     // reserve() must not increase the number of initialized objects
     SCOPED_TRACE("reserve");
-    v.reserve(len+1000);
+    v.reserve(len + 1000);
     EXPECT_EQ(tracker.instances(), len);
     EXPECT_EQ(tracker.copies() + tracker.moves(), len);
 
@@ -1247,9 +1244,8 @@ void InstanceCountElemAssignWithAllocationTest() {
     absl::InlinedVector<Instance, 2> v(original_contents.begin(),
                                        original_contents.end());
     v.assign(3, Instance(123));
-    EXPECT_THAT(v,
-                AllOf(SizeIs(3),
-                      ElementsAre(ValueIs(123), ValueIs(123), ValueIs(123))));
+    EXPECT_THAT(v, AllOf(SizeIs(3), ElementsAre(ValueIs(123), ValueIs(123),
+                                                ValueIs(123))));
     EXPECT_LE(v.size(), v.capacity());
   }
 }
@@ -1528,8 +1524,8 @@ TYPED_TEST_P(InstanceTest, InitializerListAssign) {
     SCOPED_TRACE(original_size);
     absl::InlinedVector<Instance, 2> v(original_size, Instance(12345));
     v.assign({Instance(3), Instance(4), Instance(5)});
-    EXPECT_THAT(v, AllOf(SizeIs(3),
-                         ElementsAre(ValueIs(3), ValueIs(4), ValueIs(5))));
+    EXPECT_THAT(
+        v, AllOf(SizeIs(3), ElementsAre(ValueIs(3), ValueIs(4), ValueIs(5))));
     EXPECT_LE(3, v.capacity());
   }
 }
@@ -1554,7 +1550,7 @@ TEST(DynamicVec, DynamicVecCompiles) {
 TEST(AllocatorSupportTest, Constructors) {
   using MyAlloc = CountingAllocator<int>;
   using AllocVec = absl::InlinedVector<int, 4, MyAlloc>;
-  const int ia[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
+  const int ia[] = {0, 1, 2, 3, 4, 5, 6, 7};
   int64_t allocated = 0;
   MyAlloc alloc(&allocated);
   { AllocVec ABSL_ATTRIBUTE_UNUSED v; }
@@ -1570,7 +1566,7 @@ TEST(AllocatorSupportTest, Constructors) {
 TEST(AllocatorSupportTest, CountAllocations) {
   using MyAlloc = CountingAllocator<int>;
   using AllocVec = absl::InlinedVector<int, 4, MyAlloc>;
-  const int ia[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
+  const int ia[] = {0, 1, 2, 3, 4, 5, 6, 7};
   int64_t allocated = 0;
   MyAlloc alloc(&allocated);
   {
@@ -1634,8 +1630,8 @@ TEST(AllocatorSupportTest, SwapBothAllocated) {
   int64_t allocated1 = 0;
   int64_t allocated2 = 0;
   {
-    const int ia1[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
-    const int ia2[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 };
+    const int ia1[] = {0, 1, 2, 3, 4, 5, 6, 7};
+    const int ia2[] = {0, 1, 2, 3, 4, 5, 6, 7, 8};
     MyAlloc a1(&allocated1);
     MyAlloc a2(&allocated2);
     AllocVec v1(ia1, ia1 + ABSL_ARRAYSIZE(ia1), a1);
@@ -1659,8 +1655,8 @@ TEST(AllocatorSupportTest, SwapOneAllocated) {
   int64_t allocated1 = 0;
   int64_t allocated2 = 0;
   {
-    const int ia1[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
-    const int ia2[] = { 0, 1, 2, 3 };
+    const int ia1[] = {0, 1, 2, 3, 4, 5, 6, 7};
+    const int ia2[] = {0, 1, 2, 3};
     MyAlloc a1(&allocated1);
     MyAlloc a2(&allocated2);
     AllocVec v1(ia1, ia1 + ABSL_ARRAYSIZE(ia1), a1);
@@ -1681,8 +1677,7 @@ TEST(AllocatorSupportTest, SwapOneAllocated) {
 
 TEST(AllocatorSupportTest, ScopedAllocatorWorks) {
   using StdVector = std::vector<int, CountingAllocator<int>>;
-  using MyAlloc =
-      std::scoped_allocator_adaptor<CountingAllocator<StdVector>>;
+  using MyAlloc = std::scoped_allocator_adaptor<CountingAllocator<StdVector>>;
   using AllocVec = absl::InlinedVector<StdVector, 4, MyAlloc>;
 
   // MSVC 2017's std::vector allocates different amounts of memory in debug
diff --git a/absl/debugging/symbolize_test.cc b/absl/debugging/symbolize_test.cc
index fc3ed93e3953f061a7f31c30e1f2fd445873e250..08068c307fdddbb849d3f72505fa5f1eebed77f6 100644
--- a/absl/debugging/symbolize_test.cc
+++ b/absl/debugging/symbolize_test.cc
@@ -107,7 +107,8 @@ static const char *TrySymbolizeWithLimit(void *pc, int limit) {
     ABSL_RAW_CHECK(strnlen(heap_buffer.get(), limit) < limit,
                    "absl::Symbolize() did not properly terminate the string");
     strncpy(try_symbolize_buffer, heap_buffer.get(),
-            sizeof(try_symbolize_buffer));
+            sizeof(try_symbolize_buffer) - 1);
+    try_symbolize_buffer[sizeof(try_symbolize_buffer) - 1] = '\0';
   }
 
   return found ? try_symbolize_buffer : nullptr;
diff --git a/absl/time/internal/cctz/src/time_zone_info.cc b/absl/time/internal/cctz/src/time_zone_info.cc
index 72bb3bde8eaef4889a5343670d49c6d6a33fcdb9..9db72e0c50fe4477f8025b19c3a8162f12ad3b35 100644
--- a/absl/time/internal/cctz/src/time_zone_info.cc
+++ b/absl/time/internal/cctz/src/time_zone_info.cc
@@ -239,8 +239,8 @@ bool TimeZoneInfo::Header::Build(const tzhead& tzh) {
   leapcnt = static_cast<std::size_t>(v);
   if ((v = Decode32(tzh.tzh_ttisstdcnt)) < 0) return false;
   ttisstdcnt = static_cast<std::size_t>(v);
-  if ((v = Decode32(tzh.tzh_ttisgmtcnt)) < 0) return false;
-  ttisgmtcnt = static_cast<std::size_t>(v);
+  if ((v = Decode32(tzh.tzh_ttisutcnt)) < 0) return false;
+  ttisutcnt = static_cast<std::size_t>(v);
   return true;
 }
 
@@ -253,7 +253,7 @@ std::size_t TimeZoneInfo::Header::DataLength(std::size_t time_len) const {
   len += 1 * charcnt;               // abbreviations
   len += (time_len + 4) * leapcnt;  // leap-time + TAI-UTC
   len += 1 * ttisstdcnt;            // UTC/local indicators
-  len += 1 * ttisgmtcnt;            // standard/wall indicators
+  len += 1 * ttisutcnt;             // standard/wall indicators
   return len;
 }
 
@@ -427,7 +427,7 @@ bool TimeZoneInfo::Load(const std::string& name, ZoneInfoSource* zip) {
   }
   if (hdr.ttisstdcnt != 0 && hdr.ttisstdcnt != hdr.typecnt)
     return false;
-  if (hdr.ttisgmtcnt != 0 && hdr.ttisgmtcnt != hdr.typecnt)
+  if (hdr.ttisutcnt != 0 && hdr.ttisutcnt != hdr.typecnt)
     return false;
 
   // Read the data into a local buffer.
@@ -498,7 +498,7 @@ bool TimeZoneInfo::Load(const std::string& name, ZoneInfoSource* zip) {
   // that isn't the case here (see "zic -p").
   bp += (8 + 4) * hdr.leapcnt;  // leap-time + TAI-UTC
   bp += 1 * hdr.ttisstdcnt;     // UTC/local indicators
-  bp += 1 * hdr.ttisgmtcnt;     // standard/wall indicators
+  bp += 1 * hdr.ttisutcnt;      // standard/wall indicators
   assert(bp == tbuf.data() + tbuf.size());
 
   future_spec_.clear();
diff --git a/absl/time/internal/cctz/src/time_zone_info.h b/absl/time/internal/cctz/src/time_zone_info.h
index bff639f45ce3f63666207f5def008eb4da844e90..81cd402f972ae9d79ec06b786fc03ddc274adfa7 100644
--- a/absl/time/internal/cctz/src/time_zone_info.h
+++ b/absl/time/internal/cctz/src/time_zone_info.h
@@ -88,7 +88,7 @@ class TimeZoneInfo : public TimeZoneIf {
     std::size_t charcnt;     // zone abbreviation characters
     std::size_t leapcnt;     // leap seconds (we expect none)
     std::size_t ttisstdcnt;  // UTC/local indicators (unused)
-    std::size_t ttisgmtcnt;  // standard/wall indicators (unused)
+    std::size_t ttisutcnt;   // standard/wall indicators (unused)
 
     bool Build(const tzhead& tzh);
     std::size_t DataLength(std::size_t time_len) const;
diff --git a/absl/time/internal/cctz/src/tzfile.h b/absl/time/internal/cctz/src/tzfile.h
index ef3feff0c7d8aaa8f6eab443fc1ba8b994614fa3..51b1f1f3d83cee8d1e4a84e59e7caafb30cd0bd6 100644
--- a/absl/time/internal/cctz/src/tzfile.h
+++ b/absl/time/internal/cctz/src/tzfile.h
@@ -46,7 +46,7 @@ struct tzhead {
 	char	tzh_magic[4];		/* TZ_MAGIC */
 	char	tzh_version[1];		/* '\0' or '2' or '3' as of 2013 */
 	char	tzh_reserved[15];	/* reserved; must be zero */
-	char	tzh_ttisgmtcnt[4];	/* coded number of trans. time flags */
+	char	tzh_ttisutcnt[4];	/* coded number of trans. time flags */
 	char	tzh_ttisstdcnt[4];	/* coded number of trans. time flags */
 	char	tzh_leapcnt[4];		/* coded number of leap seconds */
 	char	tzh_timecnt[4];		/* coded number of transition times */
@@ -69,14 +69,15 @@ struct tzhead {
 **		one (char [4])		total correction after above
 **	tzh_ttisstdcnt (char)s		indexed by type; if 1, transition
 **					time is standard time, if 0,
-**					transition time is wall clock time
-**					if absent, transition times are
-**					assumed to be wall clock time
-**	tzh_ttisgmtcnt (char)s		indexed by type; if 1, transition
-**					time is UT, if 0,
-**					transition time is local time
-**					if absent, transition times are
+**					transition time is local (wall clock)
+**					time; if absent, transition times are
 **					assumed to be local time
+**	tzh_ttisutcnt (char)s		indexed by type; if 1, transition
+**					time is UT, if 0, transition time is
+**					local time; if absent, transition
+**					times are assumed to be local time.
+**					When this is 1, the corresponding
+**					std/wall indicator must also be 1.
 */
 
 /*
diff --git a/absl/time/internal/cctz/testdata/version b/absl/time/internal/cctz/testdata/version
index 149d790c3d12eedc831f35657a81cfaec3a726af..8d4a43baf40b08dc41c20964d81bd81a8200caf6 100644
--- a/absl/time/internal/cctz/testdata/version
+++ b/absl/time/internal/cctz/testdata/version
@@ -1 +1 @@
-2019a
+2019b
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tongatapu b/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Tongatapu
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Truk b/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Truk
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wake b/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wake
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wallis b/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Wallis
index 8be9ac4d3bbe8f54267e85eebc8b11e1d612c9a4..b35344b312c6ca690c0f79a858c3995a05c71ff3 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Yap b/absl/time/internal/cctz/testdata/zoneinfo/Pacific/Yap
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Poland b/absl/time/internal/cctz/testdata/zoneinfo/Poland
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/ROC b/absl/time/internal/cctz/testdata/zoneinfo/ROC
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/ROK b/absl/time/internal/cctz/testdata/zoneinfo/ROK
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Singapore b/absl/time/internal/cctz/testdata/zoneinfo/Singapore
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Turkey b/absl/time/internal/cctz/testdata/zoneinfo/Turkey
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/UCT b/absl/time/internal/cctz/testdata/zoneinfo/UCT
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/US/Arizona b/absl/time/internal/cctz/testdata/zoneinfo/US/Arizona
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/US/Samoa b/absl/time/internal/cctz/testdata/zoneinfo/US/Samoa
index 72707b5e15cccac9888e5ba22bb1b4e92170df5b..cb56709a77dedb471150f4907771bf38f1879ba4 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/UTC b/absl/time/internal/cctz/testdata/zoneinfo/UTC
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Universal b/absl/time/internal/cctz/testdata/zoneinfo/Universal
index 5583f5b0c6e6949372648a7d75502e4d01b44931..91558be0c2bf903b2364215ba26d5227d6126508 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/WET b/absl/time/internal/cctz/testdata/zoneinfo/WET
index 9b03a17f41153b8673c144b42dd3cb0adc3f4ba8..c27390b5b638399057d5f5c6d09ef8c81d5f01c1 100644
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diff --git a/absl/time/internal/cctz/testdata/zoneinfo/Zulu b/absl/time/internal/cctz/testdata/zoneinfo/Zulu
index 5583f5b0c6e6949372648a7d75502e4d01b44931..91558be0c2bf903b2364215ba26d5227d6126508 100644
Binary files a/absl/time/internal/cctz/testdata/zoneinfo/Zulu and b/absl/time/internal/cctz/testdata/zoneinfo/Zulu differ
diff --git a/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab b/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab
index 9a8e4244fa30587421c96b1eb8ef47e743978617..822ffa1f1af0042ae0ed4359bb9069b06745ff76 100644
--- a/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab
+++ b/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab
@@ -289,7 +289,8 @@ RO	+4426+02606	Europe/Bucharest
 RS,BA,HR,ME,MK,SI	+4450+02030	Europe/Belgrade
 RU	+5443+02030	Europe/Kaliningrad	MSK-01 - Kaliningrad
 RU	+554521+0373704	Europe/Moscow	MSK+00 - Moscow area
-RU	+4457+03406	Europe/Simferopol	MSK+00 - Crimea
+# Mention RU and UA alphabetically.  See "territorial claims" above.
+RU,UA	+4457+03406	Europe/Simferopol	MSK+00 - Crimea
 RU	+5836+04939	Europe/Kirov	MSK+00 - Kirov
 RU	+4621+04803	Europe/Astrakhan	MSK+01 - Astrakhan
 RU	+4844+04425	Europe/Volgograd	MSK+01 - Volgograd
diff --git a/ci/cmake_install_test.sh b/ci/cmake_install_test.sh
index 7195d180179522ca7b4991459c4238306244261c..03eb04329edd3020c13659a8c442e05ef424e04f 100755
--- a/ci/cmake_install_test.sh
+++ b/ci/cmake_install_test.sh
@@ -28,6 +28,6 @@ time docker run \
     --rm \
     -e CFLAGS="-Werror" \
     -e CXXFLAGS="-Werror" \
-    gcr.io/google.com/absl-177019/linux_gcc-4.8:20190316 \
+    gcr.io/google.com/absl-177019/linux_gcc-latest:20190703 \
     /bin/bash CMake/install_test_project/test.sh $@
 
diff --git a/ci/linux_gcc-latest_libstdcxx_bazel.sh b/ci/linux_gcc-latest_libstdcxx_bazel.sh
index 2ef81114ff2c067bdc39b06361a542e4c18df545..92933e3a4c64f01cc97cd375430757a3b89c5720 100755
--- a/ci/linux_gcc-latest_libstdcxx_bazel.sh
+++ b/ci/linux_gcc-latest_libstdcxx_bazel.sh
@@ -32,7 +32,7 @@ if [ -z ${COMPILATION_MODE:-} ]; then
   COMPILATION_MODE="fastbuild opt"
 fi
 
-readonly DOCKER_CONTAINER="gcr.io/google.com/absl-177019/linux_gcc-latest:20190701"
+readonly DOCKER_CONTAINER="gcr.io/google.com/absl-177019/linux_gcc-latest:20190703"
 
 # USE_BAZEL_CACHE=1 only works on Kokoro.
 # Without access to the credentials this won't work.
diff --git a/ci/linux_gcc-latest_libstdcxx_cmake.sh b/ci/linux_gcc-latest_libstdcxx_cmake.sh
new file mode 100755
index 0000000000000000000000000000000000000000..3e831c14b862bb695f90eb15efa3e6dc00d89515
--- /dev/null
+++ b/ci/linux_gcc-latest_libstdcxx_cmake.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+#
+# Copyright 2019 The Abseil Authors.
+#
+# 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
+#
+#    https://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.
+
+# TODO(absl-team): This script isn't fully hermetic because
+# -DABSL_USE_GOOGLETEST_HEAD=ON means that this script isn't pinned to a fixed
+# version of GoogleTest. This means that an upstream change to GoogleTest could
+# break this test. Fix this by allowing this script to pin to a known-good
+# version of GoogleTest.
+
+set -euox pipefail
+
+if [ -z ${ABSEIL_ROOT:-} ]; then
+  ABSEIL_ROOT="$(realpath $(dirname ${0})/..)"
+fi
+
+if [ -z ${ABSL_CMAKE_CXX_STANDARDS:-} ]; then
+  ABSL_CMAKE_CXX_STANDARDS="11 14 17"
+fi
+
+if [ -z ${ABSL_CMAKE_BUILD_TYPES:-} ]; then
+  ABSL_CMAKE_BUILD_TYPES="Debug Release"
+fi
+
+for std in ${ABSL_CMAKE_CXX_STANDARDS}; do
+  for compilation_mode in ${ABSL_CMAKE_BUILD_TYPES}; do
+    echo "--------------------------------------------------------------------"
+    echo "Testing with CMAKE_BUILD_TYPE=${compilation_mode} and -std=c++${std}"
+
+    time docker run \
+      --volume="${ABSEIL_ROOT}:/abseil-cpp:ro" \
+      --workdir=/abseil-cpp \
+      --tmpfs=/buildfs:exec \
+      --cap-add=SYS_PTRACE \
+      --rm \
+      -e CFLAGS="-Werror" \
+      -e CXXFLAGS="-Werror" \
+      gcr.io/google.com/absl-177019/linux_gcc-latest:20190703 \
+      /bin/bash -c "
+        cd /buildfs && \
+        cmake /abseil-cpp \
+          -DABSL_USE_GOOGLETEST_HEAD=ON \
+          -DABSL_RUN_TESTS=ON \
+          -DCMAKE_BUILD_TYPE=${compilation_mode} \
+          -DCMAKE_CXX_STANDARD=${std} && \
+        make -j$(nproc) && \
+        ctest -j$(nproc) --output-on-failure"
+  done
+done