diff --git a/src/app_network.cpp b/src/app_network.cpp
index f2ce688..192e9bb 100644
--- a/src/app_network.cpp
+++ b/src/app_network.cpp
@@ -3022,7 +3022,12 @@ void App::beginAdoptSeedWallet()
                 const std::string legacy = datadir + "/wallet.dat";
                 const std::string newWallet = base + "/DRAGONX/wallet.dat";
                 std::time_t t = std::time(nullptr);
-                std::tm tmv{}; localtime_r(&t, &tmv);  // thread-safe (the UI thread also uses localtime)
+                std::tm tmv{};  // thread-safe local time (the UI thread also uses localtime)
+#ifdef _WIN32
+                localtime_s(&tmv, &t);
+#else
+                localtime_r(&t, &tmv);
+#endif
                 char ts[32]; std::strftime(ts, sizeof(ts), "%Y%m%d-%H%M%S", &tmv);
                 const std::string backup = legacy + ".legacy-migrated-" + ts + ".bak";
                 if (!fs::exists(newWallet)) {