diff --git a/orbis-kernel/include/orbis/sys/sysproto.hpp b/orbis-kernel/include/orbis/sys/sysproto.hpp
index bbe2e386f..b1d8d3594 100644
--- a/orbis-kernel/include/orbis/sys/sysproto.hpp
+++ b/orbis-kernel/include/orbis/sys/sysproto.hpp
@@ -11,15 +11,8 @@ using cpuwhich_t = sint;
 using cpulevel_t = sint;
 using SceKernelModule = ModuleHandle;
 
-struct timeval {
-  int64_t tv_sec;
-  int64_t tv_usec;
-};
-
-struct timezone {
-  sint tz_minuteswest;
-  sint tz_dsttime;
-};
+struct timeval;
+struct timezone;
 
 struct ModuleInfo;
 struct ModuleInfoEx;
diff --git a/orbis-kernel/include/orbis/time.hpp b/orbis-kernel/include/orbis/time.hpp
index 8a566b0fb..e8779ccfd 100644
--- a/orbis-kernel/include/orbis/time.hpp
+++ b/orbis-kernel/include/orbis/time.hpp
@@ -7,4 +7,12 @@ struct timespec {
   uint64_t sec;
   uint64_t nsec;
 };
+struct timeval {
+  int64_t tv_sec;
+  int64_t tv_usec;
+};
+struct timezone {
+  sint tz_minuteswest;
+  sint tz_dsttime;
+};
 } // namespace orbis
diff --git a/orbis-kernel/src/sys/sys_time.cpp b/orbis-kernel/src/sys/sys_time.cpp
index a9d1b2147..c07ec85ab 100644
--- a/orbis-kernel/src/sys/sys_time.cpp
+++ b/orbis-kernel/src/sys/sys_time.cpp
@@ -114,9 +114,9 @@ orbis::SysResult orbis::sys_nanosleep(Thread *thread, ptr<const timespec> rqtp,
 }
 orbis::SysResult orbis::sys_gettimeofday(Thread *thread, ptr<orbis::timeval> tp,
                                          ptr<orbis::timezone> tzp) {
+  ORBIS_LOG_TRACE(__FUNCTION__, tp, tzp);
   struct ::timeval tv;
-  struct ::timezone tz;
-  if (::gettimeofday(&tv, &tz) != 0)
+  if (::gettimeofday(&tv, nullptr) != 0)
     std::abort();
   if (tp) {
     orbis::timeval value;
@@ -126,9 +126,12 @@ orbis::SysResult orbis::sys_gettimeofday(Thread *thread, ptr<orbis::timeval> tp,
       return e;
   }
   if (tzp) {
+    struct ::tm tp;
+    if (localtime_r(&tv.tv_sec, &tp) != &tp)
+      std::abort();
     orbis::timezone value;
-    value.tz_dsttime = tz.tz_dsttime;
-    value.tz_minuteswest = tz.tz_minuteswest;
+    value.tz_dsttime = tp.tm_isdst;
+    value.tz_minuteswest = -tp.tm_gmtoff / 60;
     if (auto e = uwrite(tzp, value); e != ErrorCode{})
       return e;
   }