diff --git a/src/main/main.cc b/src/main/main.cc
index 626d25db..457b7f25 100644
--- a/src/main/main.cc
+++ b/src/main/main.cc
@@ -2,6 +2,8 @@
 #include "core/client.h"
 #include "core/server.h"
 #include "utility/random.h"
+#include "utility/time.h"
+#include <bit>
 #include <condition_variable>
 #include <filesystem>
 #include <fstream>
@@ -240,15 +242,13 @@ void shutdown() {
 }
 } // namespace Candy
 
-int main(int argc, char *argv[]) {
+namespace {
+int run(struct arguments &arguments) {
     netStartup();
 
     Candy::Server server;
     Candy::Client client;
 
-    struct arguments arguments;
-    argp_parse(&config, argc, argv, 0, 0, &arguments);
-
     if (arguments.mode == "server") {
         server.setPassword(arguments.password);
         server.setWebSocketServer(arguments.websocket);
@@ -282,10 +282,24 @@ int main(int argc, char *argv[]) {
     if (exitCode == 0) {
         spdlog::info("service exit: normal");
     } else {
-        spdlog::warn("service exit: internal exception");
+        spdlog::info("service exit: internal exception");
     }
 
     netCleanup();
-
     return exitCode;
 }
+} // namespace
+
+int main(int argc, char *argv[]) {
+    struct arguments arguments;
+    argp_parse(&config, argc, argv, 0, 0, &arguments);
+
+    while (run(arguments)) {
+        exitCode = 0;
+        running = true;
+        Candy::Time::reset();
+        std::this_thread::sleep_for(std::chrono::seconds(3));
+    }
+
+    return 0;
+}
diff --git a/src/utility/time.cc b/src/utility/time.cc
index b63175a9..51d13c16 100644
--- a/src/utility/time.cc
+++ b/src/utility/time.cc
@@ -206,7 +206,11 @@ static int64_t ntpTime() {
 
 namespace Candy {
 
-bool Time::useSystemTime = false;
+bool Time::useSystemTime;
+
+void Time::reset() {
+    useSystemTime = false;
+}
 
 int64_t Time::unixTime() {
     using namespace std::chrono;
diff --git a/src/utility/time.h b/src/utility/time.h
index 8913923e..6c0cb4a2 100644
--- a/src/utility/time.h
+++ b/src/utility/time.h
@@ -8,6 +8,7 @@ namespace Candy {
 
 class Time {
 public:
+    static void reset();
     static int64_t unixTime();
     static int64_t hostToNet(int64_t host);
     static int64_t netToHost(int64_t net);