use timestamp_to_str_local incase Hinnanat libary fails to covert to UTC timezone

src/tools.cpp

@@ -147,11 +147,42 @@ namespace xmreg
     timestamp_to_str(time_t timestamp, const char* format)
     {
         auto a_time_point = chrono::system_clock::from_time_t(timestamp);
+
+        try
+        {
             auto utc          = date::to_utc_time(chrono::system_clock::from_time_t(timestamp));
             auto sys_time     = date::to_sys_time(utc);
 
             return date::format(format, date::floor<chrono::seconds>(sys_time));
         }
+        catch (std::runtime_error& e)
+        {
+            cerr << "xmreg::timestamp_to_str: " << e.what() << endl;
+            cerr << "Seems cant convert to UTC timezone using date libary. "
+                    "So just use local timezone." <<endl;
+
+            return timestamp_to_str_local(timestamp, format);
+        }
+    }
+
+
+    string
+    timestamp_to_str_local(time_t timestamp, const char* format)
+    {
+
+        const int TIME_LENGTH = 60;
+
+        char str_buff[TIME_LENGTH];
+
+        tm *tm_ptr;
+        tm_ptr = localtime(&timestamp);
+
+        size_t len;
+
+        len = std::strftime(str_buff, TIME_LENGTH, format, tm_ptr);
+
+        return string(str_buff, len);
+    }
 
 
     ostream&

src/tools.h

@@ -101,6 +101,8 @@ remove_trailing_path_separator(const bf::path& in_path);
 string
 timestamp_to_str(time_t timestamp, const char* format = "%F %T");
 
+string
+timestamp_to_str_local(time_t timestamp, const char* format = "%F %T");
 
 ostream&
 operator<< (ostream& os, const account_public_address& addr);