Refs #21314. Protect current_time_since_unix_epoch against clock adju…

…stments.

Signed-off-by: Miguel Company <[email protected]>

src/cpp/utils/time_t_helpers.hpp

@@ -40,8 +40,12 @@ static void current_time_since_unix_epoch(
 {
     using namespace std::chrono;
 
+    static const auto init_time_since_epoch = system_clock::now().time_since_epoch();
+    static const auto init_steady_time = steady_clock::now();
+
     // Get time since epoch
-    auto t_since_epoch = system_clock::now().time_since_epoch();
+    auto t_elapsed = steady_clock::now() - init_steady_time;
+    auto t_since_epoch = init_time_since_epoch + t_elapsed;
     // Get seconds
     auto secs_t = duration_cast<seconds>(t_since_epoch);
     // Remove seconds from time