diff --git a/CHANGELOG b/CHANGELOG
index 1f106ea..bec63e0 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,6 @@
 Unreleased:
   Tracing service and probes:
-    * Added reporting of TZ offset under system_info.timezone_off_mins .
+    *
   Trace Processor:
     *
   UI:
diff --git a/include/perfetto/base/time.h b/include/perfetto/base/time.h
index ea15dae..f8161ab 100644
--- a/include/perfetto/base/time.h
+++ b/include/perfetto/base/time.h
@@ -20,7 +20,6 @@
 #include <time.h>
 
 #include <chrono>
-#include <optional>
 #include <string>
 
 #include "perfetto/base/build_config.h"
@@ -246,8 +245,6 @@
   return TimeGm(&tms);
 }
 
-std::optional<int32_t> GetTimezoneOffsetMins();
-
 }  // namespace base
 }  // namespace perfetto
 
diff --git a/protos/perfetto/trace/perfetto_trace.proto b/protos/perfetto/trace/perfetto_trace.proto
index bf28006..16112ab 100644
--- a/protos/perfetto/trace/perfetto_trace.proto
+++ b/protos/perfetto/trace/perfetto_trace.proto
@@ -12452,10 +12452,6 @@
 
   // Kernel page size - sysconf(_SC_PAGESIZE).
   optional uint32 page_size = 6;
-
-  // The timezone offset from UTC, as per strftime("%z"), in minutes.
-  // Introduced in v38 / Android V.
-  optional int32 timezone_off_mins = 7;
 }
 
 // End of protos/perfetto/trace/system_info.proto
diff --git a/protos/perfetto/trace/system_info.proto b/protos/perfetto/trace/system_info.proto
index 9a75773..f4c0507 100644
--- a/protos/perfetto/trace/system_info.proto
+++ b/protos/perfetto/trace/system_info.proto
@@ -44,8 +44,4 @@
 
   // Kernel page size - sysconf(_SC_PAGESIZE).
   optional uint32 page_size = 6;
-
-  // The timezone offset from UTC, as per strftime("%z"), in minutes.
-  // Introduced in v38 / Android V.
-  optional int32 timezone_off_mins = 7;
 }
diff --git a/src/base/string_utils_unittest.cc b/src/base/string_utils_unittest.cc
index 0138bf1..f65da9f 100644
--- a/src/base/string_utils_unittest.cc
+++ b/src/base/string_utils_unittest.cc
@@ -96,8 +96,6 @@
 TEST(StringUtilsTest, StringToInt32) {
   EXPECT_EQ(StringToInt32("0"), std::make_optional<int32_t>(0));
   EXPECT_EQ(StringToInt32("1"), std::make_optional<int32_t>(1));
-  EXPECT_EQ(StringToInt32("+42"), std::make_optional<int32_t>(42));
-  EXPECT_EQ(StringToInt32("+0042"), std::make_optional<int32_t>(42));
   EXPECT_EQ(StringToInt32("-42"), std::make_optional<int32_t>(-42));
   EXPECT_EQ(StringToInt32("42", 16), std::make_optional<int32_t>(0x42));
   EXPECT_EQ(StringToInt32("7ffffffe", 16),
diff --git a/src/base/time.cc b/src/base/time.cc
index 1507916..a02c9d6 100644
--- a/src/base/time.cc
+++ b/src/base/time.cc
@@ -18,7 +18,6 @@
 
 #include "perfetto/base/build_config.h"
 #include "perfetto/base/logging.h"
-#include "perfetto/ext/base/string_utils.h"
 
 #if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN)
 #include <Windows.h>
@@ -79,17 +78,5 @@
   return buf;
 }
 
-std::optional<int32_t> GetTimezoneOffsetMins() {
-  std::string tz = GetTimeFmt("%z");
-  if (tz.size() != 5 || (tz[0] != '+' && tz[0] != '-'))
-    return std::nullopt;
-  char sign = '\0';
-  int32_t hh = 0;
-  int32_t mm = 0;
-  if (sscanf(tz.c_str(), "%c%2d%2d", &sign, &hh, &mm) != 3)
-    return std::nullopt;
-  return (hh * 60 + mm) * (sign == '-' ? -1 : 1);
-}
-
 }  // namespace base
 }  // namespace perfetto
diff --git a/src/base/time_unittest.cc b/src/base/time_unittest.cc
index 6536bc8..62c8566 100644
--- a/src/base/time_unittest.cc
+++ b/src/base/time_unittest.cc
@@ -16,7 +16,6 @@
 
 #include "perfetto/base/time.h"
 
-#include "perfetto/ext/base/utils.h"
 #include "test/gtest_and_gmock.h"
 
 namespace perfetto {
@@ -73,27 +72,6 @@
   EXPECT_LE(elapsed_cputime.count(), 50 * ns_in_ms);
 }
 
-TEST(TimeTest, GetTimezoneOffsetMins) {
-  const char* tz = getenv("TZ");
-  std::string tz_save(tz ? tz : "");
-  auto reset_tz_on_exit = OnScopeExit([&] {
-    if (!tz_save.empty())
-      setenv("TZ", tz_save.c_str(), 1);
-  });
-
-  // Note: the sign is reversed in the semantic of the TZ env var.
-  // UTC+2 means "2 hours to reach UTC", not "2 hours ahead of UTC".
-
-  setenv("TZ", "UTC+2", true);
-  EXPECT_EQ(GetTimezoneOffsetMins(), -2 * 60);
-
-  setenv("TZ", "UTC-2", true);
-  EXPECT_EQ(GetTimezoneOffsetMins(), 2 * 60);
-
-  setenv("TZ", "UTC-07:45", true);
-  EXPECT_EQ(GetTimezoneOffsetMins(), 7 * 60 + 45);
-}
-
 }  // namespace
 }  // namespace base
 }  // namespace perfetto
diff --git a/src/trace_processor/importers/proto/system_probes_parser.cc b/src/trace_processor/importers/proto/system_probes_parser.cc
index 0eefa57..da6a2d2 100644
--- a/src/trace_processor/importers/proto/system_probes_parser.cc
+++ b/src/trace_processor/importers/proto/system_probes_parser.cc
@@ -603,12 +603,6 @@
                           Variadic::String(machine_id));
   }
 
-  if (packet.has_timezone_off_mins()) {
-    context_->metadata_tracker->SetMetadata(
-        metadata::timezone_off_mins,
-        Variadic::Integer(packet.timezone_off_mins()));
-  }
-
   if (packet.has_android_build_fingerprint()) {
     context_->metadata_tracker->SetMetadata(
         metadata::android_build_fingerprint,
diff --git a/src/trace_processor/storage/metadata.h b/src/trace_processor/storage/metadata.h
index ba2f4c0..88eac06 100644
--- a/src/trace_processor/storage/metadata.h
+++ b/src/trace_processor/storage/metadata.h
@@ -48,7 +48,6 @@
   F(system_name,                       KeyType::kSingle,  Variadic::kString), \
   F(system_release,                    KeyType::kSingle,  Variadic::kString), \
   F(system_version,                    KeyType::kSingle,  Variadic::kString), \
-  F(timezone_off_mins,                 KeyType::kSingle,  Variadic::kInt),    \
   F(trace_config_pbtxt,                KeyType::kSingle,  Variadic::kString), \
   F(trace_size_bytes,                  KeyType::kSingle,  Variadic::kInt),    \
   F(trace_time_clock_id,               KeyType::kSingle,  Variadic::kInt),    \
diff --git a/src/tracing/core/tracing_service_impl.cc b/src/tracing/core/tracing_service_impl.cc
index 45ce1eb..9040ded 100644
--- a/src/tracing/core/tracing_service_impl.cc
+++ b/src/tracing/core/tracing_service_impl.cc
@@ -3470,11 +3470,6 @@
   protozero::HeapBuffered<protos::pbzero::TracePacket> packet;
   auto* info = packet->set_system_info();
   info->set_tracing_service_version(base::GetVersionString());
-
-  std::optional<int32_t> tzoff = base::GetTimezoneOffsetMins();
-  if (tzoff.has_value())
-    info->set_timezone_off_mins(*tzoff);
-
 #if !PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) && \
     !PERFETTO_BUILDFLAG(PERFETTO_OS_NACL)
   struct utsname uname_info;
diff --git a/test/trace_processor/diff_tests/tables/tests.py b/test/trace_processor/diff_tests/tables/tests.py
index a6ff813..83775a3 100644
--- a/test/trace_processor/diff_tests/tables/tests.py
+++ b/test/trace_processor/diff_tests/tables/tests.py
@@ -266,52 +266,18 @@
 
   def test_thread_state_flattened_aggregated(self):
     return DiffTestBlueprint(
-        trace=DataPath('android_monitor_contention_trace.atr'),
-        query="""
+      trace=DataPath('android_monitor_contention_trace.atr'),
+      query="""
       INCLUDE PERFETTO MODULE experimental.thread_state_flattened;
       select * from experimental_get_flattened_thread_state_aggregated(11155, NULL);
       """,
-        out=Path('thread_state_flattened_aggregated_csv.out'))
+      out=Path('thread_state_flattened_aggregated_csv.out'))
 
   def test_thread_state_flattened(self):
     return DiffTestBlueprint(
-        trace=DataPath('android_monitor_contention_trace.atr'),
-        query="""
+      trace=DataPath('android_monitor_contention_trace.atr'),
+      query="""
       INCLUDE PERFETTO MODULE experimental.thread_state_flattened;
       select * from experimental_get_flattened_thread_state(11155, NULL);
       """,
-        out=Path('thread_state_flattened_csv.out'))
-
-  def test_metadata(self):
-    return DiffTestBlueprint(
-        trace=TextProto(r"""
-        packet {
-          system_info {
-            tracing_service_version: "Perfetto v38.0-0bb49ab54 (0bb49ab54dbe55ce5b9dfea3a2ada68b87aecb65)"
-            timezone_off_mins: 60
-            utsname {
-              sysname: "Darwin"
-              version: "Foobar"
-              machine: "x86_64"
-              release: "22.6.0"
-            }
-          }
-          trusted_uid: 158158
-          trusted_packet_sequence_id: 1
-        }
-        """),
-        query=r"""SELECT name, COALESCE(str_value, int_value) as val
-              FROM metadata
-              WHERE name IN (
-                  "system_name", "system_version", "system_machine",
-                  "system_release", "timezone_off_mins")
-              ORDER BY name
-        """,
-        out=Csv(r"""
-                "name","val"
-                "system_machine","x86_64"
-                "system_name","Darwin"
-                "system_release","22.6.0"
-                "system_version","Foobar"
-                "timezone_off_mins",60
-                """))
+      out=Path('thread_state_flattened_csv.out'))