diff --git a/absl/time/internal/cctz/src/cctz_benchmark.cc b/absl/time/internal/cctz/src/cctz_benchmark.cc
index 4e39188f..414ea282 100644
--- a/absl/time/internal/cctz/src/cctz_benchmark.cc
+++ b/absl/time/internal/cctz/src/cctz_benchmark.cc
@@ -23,7 +23,7 @@
 #include "benchmark/benchmark.h"
 #include "absl/time/internal/cctz/include/cctz/civil_time.h"
 #include "absl/time/internal/cctz/include/cctz/time_zone.h"
-#include "time_zone_impl.h"
+#include "absl/time/internal/cctz/src/time_zone_impl.h"
 
 namespace {
 
diff --git a/absl/time/internal/cctz/src/time_zone_fixed.cc b/absl/time/internal/cctz/src/time_zone_fixed.cc
index f2b3294e..c907f75f 100644
--- a/absl/time/internal/cctz/src/time_zone_fixed.cc
+++ b/absl/time/internal/cctz/src/time_zone_fixed.cc
@@ -12,7 +12,7 @@
 //   See the License for the specific language governing permissions and
 //   limitations under the License.
 
-#include "time_zone_fixed.h"
+#include "absl/time/internal/cctz/src/time_zone_fixed.h"
 
 #include <algorithm>
 #include <cassert>
diff --git a/absl/time/internal/cctz/src/time_zone_format.cc b/absl/time/internal/cctz/src/time_zone_format.cc
index d8cb0474..5381b2ca 100644
--- a/absl/time/internal/cctz/src/time_zone_format.cc
+++ b/absl/time/internal/cctz/src/time_zone_format.cc
@@ -46,7 +46,7 @@
 #endif
 
 #include "absl/time/internal/cctz/include/cctz/civil_time.h"
-#include "time_zone_if.h"
+#include "absl/time/internal/cctz/src/time_zone_if.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
diff --git a/absl/time/internal/cctz/src/time_zone_if.cc b/absl/time/internal/cctz/src/time_zone_if.cc
index 0319b2f9..f91f0be0 100644
--- a/absl/time/internal/cctz/src/time_zone_if.cc
+++ b/absl/time/internal/cctz/src/time_zone_if.cc
@@ -12,11 +12,11 @@
 //   See the License for the specific language governing permissions and
 //   limitations under the License.
 
-#include "time_zone_if.h"
+#include "absl/time/internal/cctz/src/time_zone_if.h"
 
 #include "absl/base/config.h"
-#include "time_zone_info.h"
-#include "time_zone_libc.h"
+#include "absl/time/internal/cctz/src/time_zone_info.h"
+#include "absl/time/internal/cctz/src/time_zone_libc.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
diff --git a/absl/time/internal/cctz/src/time_zone_impl.cc b/absl/time/internal/cctz/src/time_zone_impl.cc
index f34e3aec..5fa4d51c 100644
--- a/absl/time/internal/cctz/src/time_zone_impl.cc
+++ b/absl/time/internal/cctz/src/time_zone_impl.cc
@@ -12,7 +12,7 @@
 //   See the License for the specific language governing permissions and
 //   limitations under the License.
 
-#include "time_zone_impl.h"
+#include "absl/time/internal/cctz/src/time_zone_impl.h"
 
 #include <deque>
 #include <memory>
@@ -22,7 +22,7 @@
 #include <utility>
 
 #include "absl/base/config.h"
-#include "time_zone_fixed.h"
+#include "absl/time/internal/cctz/src/time_zone_fixed.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
diff --git a/absl/time/internal/cctz/src/time_zone_impl.h b/absl/time/internal/cctz/src/time_zone_impl.h
index 7d747ba9..4fa15272 100644
--- a/absl/time/internal/cctz/src/time_zone_impl.h
+++ b/absl/time/internal/cctz/src/time_zone_impl.h
@@ -21,8 +21,8 @@
 #include "absl/base/config.h"
 #include "absl/time/internal/cctz/include/cctz/civil_time.h"
 #include "absl/time/internal/cctz/include/cctz/time_zone.h"
-#include "time_zone_if.h"
-#include "time_zone_info.h"
+#include "absl/time/internal/cctz/src/time_zone_if.h"
+#include "absl/time/internal/cctz/src/time_zone_info.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
diff --git a/absl/time/internal/cctz/src/time_zone_info.cc b/absl/time/internal/cctz/src/time_zone_info.cc
index f2777d91..210d47ff 100644
--- a/absl/time/internal/cctz/src/time_zone_info.cc
+++ b/absl/time/internal/cctz/src/time_zone_info.cc
@@ -30,7 +30,7 @@
 // Note that we assume the proleptic Gregorian calendar and 60-second
 // minutes throughout.
 
-#include "time_zone_info.h"
+#include "absl/time/internal/cctz/src/time_zone_info.h"
 
 #include <algorithm>
 #include <cassert>
@@ -47,8 +47,8 @@
 
 #include "absl/base/config.h"
 #include "absl/time/internal/cctz/include/cctz/civil_time.h"
-#include "time_zone_fixed.h"
-#include "time_zone_posix.h"
+#include "absl/time/internal/cctz/src/time_zone_fixed.h"
+#include "absl/time/internal/cctz/src/time_zone_posix.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
diff --git a/absl/time/internal/cctz/src/time_zone_info.h b/absl/time/internal/cctz/src/time_zone_info.h
index 2467ff55..1d9f8aae 100644
--- a/absl/time/internal/cctz/src/time_zone_info.h
+++ b/absl/time/internal/cctz/src/time_zone_info.h
@@ -25,8 +25,8 @@
 #include "absl/time/internal/cctz/include/cctz/civil_time.h"
 #include "absl/time/internal/cctz/include/cctz/time_zone.h"
 #include "absl/time/internal/cctz/include/cctz/zone_info_source.h"
-#include "time_zone_if.h"
-#include "tzfile.h"
+#include "absl/time/internal/cctz/src/time_zone_if.h"
+#include "absl/time/internal/cctz/src/tzfile.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
diff --git a/absl/time/internal/cctz/src/time_zone_libc.cc b/absl/time/internal/cctz/src/time_zone_libc.cc
index 887dd097..5e445c75 100644
--- a/absl/time/internal/cctz/src/time_zone_libc.cc
+++ b/absl/time/internal/cctz/src/time_zone_libc.cc
@@ -16,7 +16,7 @@
 #define _CRT_SECURE_NO_WARNINGS 1
 #endif
 
-#include "time_zone_libc.h"
+#include "absl/time/internal/cctz/src/time_zone_libc.h"
 
 #include <chrono>
 #include <ctime>
diff --git a/absl/time/internal/cctz/src/time_zone_libc.h b/absl/time/internal/cctz/src/time_zone_libc.h
index 1da9039a..64060b34 100644
--- a/absl/time/internal/cctz/src/time_zone_libc.h
+++ b/absl/time/internal/cctz/src/time_zone_libc.h
@@ -18,7 +18,7 @@
 #include <string>
 
 #include "absl/base/config.h"
-#include "time_zone_if.h"
+#include "absl/time/internal/cctz/src/time_zone_if.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
diff --git a/absl/time/internal/cctz/src/time_zone_lookup.cc b/absl/time/internal/cctz/src/time_zone_lookup.cc
index efdea64b..7bd33141 100644
--- a/absl/time/internal/cctz/src/time_zone_lookup.cc
+++ b/absl/time/internal/cctz/src/time_zone_lookup.cc
@@ -32,8 +32,8 @@
 #include <cstring>
 #include <string>
 
-#include "time_zone_fixed.h"
-#include "time_zone_impl.h"
+#include "absl/time/internal/cctz/src/time_zone_fixed.h"
+#include "absl/time/internal/cctz/src/time_zone_impl.h"
 
 namespace absl {
 ABSL_NAMESPACE_BEGIN
diff --git a/absl/time/internal/cctz/src/time_zone_posix.cc b/absl/time/internal/cctz/src/time_zone_posix.cc
index 5cdd09e8..efea0804 100644
--- a/absl/time/internal/cctz/src/time_zone_posix.cc
+++ b/absl/time/internal/cctz/src/time_zone_posix.cc
@@ -12,7 +12,7 @@
 //   See the License for the specific language governing permissions and
 //   limitations under the License.
 
-#include "time_zone_posix.h"
+#include "absl/time/internal/cctz/src/time_zone_posix.h"
 
 #include <cstddef>
 #include <cstring>