diff --git a/CMakeLists.txt b/CMakeLists.txt
index 129fd4b..746595f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.10)
 # 工程名称（随便改）
 project(rtsp_server)
 
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 add_compile_definitions(GLIB_DISABLE_DEPRECATION_WARNINGS)
diff --git a/src/logger.cpp b/src/logger.cpp
index 79a209d..194e4fa 100644
--- a/src/logger.cpp
+++ b/src/logger.cpp
@@ -1,8 +1,10 @@
 // logger.cpp
 #include "logger.hpp"
 
+#include <chrono>
 #include <cstdio>
 #include <ctime>
+#include <format>
 #include <fstream>
 #include <iomanip>
 
@@ -21,14 +23,17 @@ void Logger::set_log_to_file(const std::string& filename)
 
 std::string Logger::get_time_string()
 {
-    auto now = std::chrono::system_clock::now();
-    auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()) % 1000;
+    using namespace std::chrono;
 
-    std::time_t t = std::chrono::system_clock::to_time_t(now);
-    std::tm tm_now = *std::localtime(&t);
+    auto now = system_clock::now();
+    auto zt = zoned_time{current_zone(), now};  // 自动使用系统时区（Asia/Shanghai）
 
+    // 获取毫秒部分
+    auto ms = duration_cast<milliseconds>(zt.get_local_time().time_since_epoch()) % 1000;
+
+    // 格式化
     std::ostringstream ss;
-    ss << std::put_time(&tm_now, "%Y-%m-%d %H:%M:%S") << "." << std::setw(3) << std::setfill('0') << millis.count();
+    ss << format("{:%Y-%m-%d %H:%M:%S}", zt) << '.' << std::setw(3) << std::setfill('0') << ms.count();
 
     return ss.str();
 }
@@ -38,13 +43,12 @@ std::string Logger::get_current_time_utc8()
     using namespace std::chrono;
 
     auto now = system_clock::now();
-    auto millis = duration_cast<milliseconds>(now.time_since_epoch()) % 1000;
+    zoned_time zt{current_zone(), now};
 
-    std::time_t t = system_clock::to_time_t(now);
-    std::tm tm_now = *std::localtime(&t);
+    auto ms = duration_cast<milliseconds>(zt.get_local_time().time_since_epoch()) % 1000;
 
     std::ostringstream ss;
-    ss << std::put_time(&tm_now, "%Y%m%d%H%M%S") << std::setw(3) << std::setfill('0') << millis.count();
+    ss << format("{:%Y%m%d%H%M%S}", zt) << std::setw(3) << std::setfill('0') << ms.count();
 
     return ss.str();
 }