diff --git a/CMakeLists.txt b/CMakeLists.txt
index 04b92c815..042b896b6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -614,7 +614,6 @@ find_package(HIDAPI)
 
 add_definition_if_library_exists(c memset_s "string.h" HAVE_MEMSET_S)
 add_definition_if_library_exists(c explicit_bzero "strings.h" HAVE_EXPLICIT_BZERO)
-add_definition_if_function_found(strptime HAVE_STRPTIME)
 
 add_definitions(-DAUTO_INITIALIZE_EASYLOGGINGPP)
 
diff --git a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
index a120c1d8f..abbd9b5a1 100644
--- a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
+++ b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h
@@ -103,7 +103,7 @@ namespace epee
     static bool unserialize_stl_container_t_val(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname)
     {
       container.clear();
-      typename stl_container::value_type exchange_val;
+      typename stl_container::value_type exchange_val{};
       typename t_storage::harray hval_array = stg.get_first_value(pname, exchange_val, hparent_section);
       if(!hval_array) return false;
       container.insert(container.end(), std::move(exchange_val));
diff --git a/contrib/epee/include/storages/portable_storage_val_converters.h b/contrib/epee/include/storages/portable_storage_val_converters.h
index 5eb9acffd..bd3707385 100644
--- a/contrib/epee/include/storages/portable_storage_val_converters.h
+++ b/contrib/epee/include/storages/portable_storage_val_converters.h
@@ -28,18 +28,15 @@
 
 #pragma once
 
-#include <boost/regex.hpp>
-
 #include "misc_language.h"
 #include "portable_storage_base.h"
-#include "parserse_base_utils.h"
 #include "warnings.h"
 #include "misc_log_ex.h"
 
-#include <boost/lexical_cast.hpp>
 #include <boost/numeric/conversion/bounds.hpp>
+#include <limits>
+#include <type_traits>
 #include <typeinfo>
-#include <iomanip>
 
 namespace epee
 {
@@ -140,36 +137,6 @@ POP_WARNINGS
       }
     };
 
-    // For MyMonero/OpenMonero backend compatibility
-    // MyMonero backend sends amount, fees and timestamp values as strings.
-    // Until MM backend is updated, this is needed for compatibility between OpenMonero and MyMonero. 
-    template<>
-    struct convert_to_integral<std::string, uint64_t, false>
-    {
-      static void convert(const std::string& from, uint64_t& to)
-      {
-        MTRACE("Converting std::string to uint64_t. Source: " << from);
-        // String only contains digits
-        if(std::all_of(from.begin(), from.end(), epee::misc_utils::parse::isdigit))
-          to = boost::lexical_cast<uint64_t>(from);
-        // MyMonero ISO 8061 timestamp (2017-05-06T16:27:06Z)
-        else if (boost::regex_match (from, boost::regex("\\d{4}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d:[0-5]\\dZ")))
-        {
-          // Convert to unix timestamp
-#ifdef HAVE_STRPTIME
-          struct tm tm;
-          if (strptime(from.c_str(), "%Y-%m-%dT%H:%M:%S", &tm))
-#else
-          std::tm tm = {};
-          std::istringstream ss(from);
-          if (ss >> std::get_time(&tm, "%Y-%m-%dT%H:%M:%S"))
-#endif
-            to = std::mktime(&tm);
-        } else
-          ASSERT_AND_THROW_WRONG_CONVERSION();
-      }
-    };
-
     template<class from_type, class to_type>
     struct is_convertable: std::integral_constant<bool,
                             std::is_integral<to_type>::value &&