diff --git a/contrib/epee/include/net/abstract_tcp_server2.h b/contrib/epee/include/net/abstract_tcp_server2.h
index 33e50cd35..925a465a7 100644
--- a/contrib/epee/include/net/abstract_tcp_server2.h
+++ b/contrib/epee/include/net/abstract_tcp_server2.h
@@ -404,7 +404,7 @@ namespace net_utils
     try_connect_result_t try_connect(connection_ptr new_connection_l, const std::string& adr, const std::string& port, boost::asio::ip::tcp::socket &sock_, const boost::asio::ip::tcp::endpoint &remote_endpoint, const std::string &bind_ip, uint32_t conn_timeout, epee::net_utils::ssl_support_t ssl_support);
     bool connect(const std::string& adr, const std::string& port, uint32_t conn_timeot, t_connection_context& cn, const std::string& bind_ip = "0.0.0.0", epee::net_utils::ssl_support_t ssl_support = epee::net_utils::ssl_support_t::e_ssl_support_autodetect);
     template<class t_callback>
-    bool connect_async(const std::string& adr, const std::string& port, uint32_t conn_timeot, const t_callback &cb, const std::string& bind_ip = "0.0.0.0", epee::net_utils::ssl_support_t ssl_support = epee::net_utils::ssl_support_t::e_ssl_support_autodetect, t_connection_context&& initial = t_connection_context{});
+    bool connect_async(const std::string& adr, const std::string& port, std::chrono::milliseconds conn_timeout, const t_callback &cb, const std::string& bind_ip = "0.0.0.0", epee::net_utils::ssl_support_t ssl_support = epee::net_utils::ssl_support_t::e_ssl_support_autodetect, t_connection_context&& initial = t_connection_context{});
 
     boost::asio::ssl::context& get_ssl_context() noexcept
     {
@@ -445,42 +445,43 @@ namespace net_utils
       idle_callback_conext_base(boost::asio::io_context& io_serice):
                                                           m_timer(io_serice)
       {}
-      boost::asio::deadline_timer m_timer;
+      boost::asio::steady_timer m_timer;
     };
 
     template <class t_handler>
     struct idle_callback_conext: public idle_callback_conext_base
     {
-      idle_callback_conext(boost::asio::io_context& io_serice, t_handler& h, uint64_t period):
+      idle_callback_conext(boost::asio::io_context& io_serice, t_handler& h, std::chrono::milliseconds period):
                                                     idle_callback_conext_base(io_serice),
-                                                    m_handler(h)
-      {this->m_period = period;}
+                                                    m_handler(h),
+                                                    m_period(period)
+      {}
 
       t_handler m_handler;
       virtual bool call_handler()
       {
         return m_handler();
       }
-      uint64_t m_period;
+      const std::chrono::milliseconds m_period;
     };
 
     template<class t_handler>
-    bool add_idle_handler(t_handler t_callback, uint64_t timeout_ms)
+    bool add_idle_handler(t_handler t_callback, const std::chrono::milliseconds timeout)
       {
-        boost::shared_ptr<idle_callback_conext<t_handler>> ptr(new idle_callback_conext<t_handler>(io_context_, t_callback, timeout_ms));
+        std::shared_ptr<idle_callback_conext<t_handler>> ptr(std::make_shared<idle_callback_conext<t_handler>>(io_context_, t_callback, timeout));
         //needed call handler here ?...
-        ptr->m_timer.expires_from_now(boost::posix_time::milliseconds(ptr->m_period));
+        ptr->m_timer.expires_after(ptr->m_period);
         ptr->m_timer.async_wait(boost::bind(&boosted_tcp_server<t_protocol_handler>::global_timer_handler<t_handler>, this, ptr));
         return true;
       }
 
     template<class t_handler>
-    bool global_timer_handler(/*const boost::system::error_code& err, */boost::shared_ptr<idle_callback_conext<t_handler>> ptr)
+    bool global_timer_handler(/*const boost::system::error_code& err, */std::shared_ptr<idle_callback_conext<t_handler>> ptr)
     {
       //if handler return false - he don't want to be called anymore
       if(!ptr->call_handler())
         return true;
-      ptr->m_timer.expires_from_now(boost::posix_time::milliseconds(ptr->m_period));
+      ptr->m_timer.expires_after(ptr->m_period);
       ptr->m_timer.async_wait(boost::bind(&boosted_tcp_server<t_protocol_handler>::global_timer_handler<t_handler>, this, ptr));
       return true;
     }
diff --git a/contrib/epee/include/net/abstract_tcp_server2.inl b/contrib/epee/include/net/abstract_tcp_server2.inl
index 83f0c08ab..d344119f4 100644
--- a/contrib/epee/include/net/abstract_tcp_server2.inl
+++ b/contrib/epee/include/net/abstract_tcp_server2.inl
@@ -38,7 +38,7 @@
 #include <boost/chrono.hpp>
 #include <boost/utility/value_init.hpp>
 #include <boost/asio/bind_executor.hpp>
-#include <boost/asio/deadline_timer.hpp>
+#include <boost/asio/steady_timer.hpp>
 #include <boost/date_time/posix_time/posix_time.hpp> // TODO
 #include <boost/thread/condition_variable.hpp> // TODO
 #include <boost/make_shared.hpp>
@@ -1894,7 +1894,7 @@ namespace net_utils
   }
   //---------------------------------------------------------------------------------
   template<class t_protocol_handler> template<class t_callback>
-  bool boosted_tcp_server<t_protocol_handler>::connect_async(const std::string& adr, const std::string& port, uint32_t conn_timeout, const t_callback &cb, const std::string& bind_ip, epee::net_utils::ssl_support_t ssl_support, t_connection_context&& initial)
+  bool boosted_tcp_server<t_protocol_handler>::connect_async(const std::string& adr, const std::string& port, const std::chrono::milliseconds conn_timeout, const t_callback &cb, const std::string& bind_ip, epee::net_utils::ssl_support_t ssl_support, t_connection_context&& initial)
   {
     TRY_ENTRY();    
     connection_ptr new_connection_l(new connection<t_protocol_handler>(io_context_, m_state, m_connection_type, ssl_support, std::move(initial)) );
@@ -1975,14 +1975,14 @@ namespace net_utils
       }
     }
     
-    boost::shared_ptr<boost::asio::deadline_timer> sh_deadline(new boost::asio::deadline_timer(io_context_));
+    std::shared_ptr<boost::asio::steady_timer> sh_deadline(std::make_shared<boost::asio::steady_timer>(io_context_));
     //start deadline
-    sh_deadline->expires_from_now(boost::posix_time::milliseconds(conn_timeout));
+    sh_deadline->expires_after(conn_timeout);
     sh_deadline->async_wait([=](const boost::system::error_code& error)
       {
           if(error != boost::asio::error::operation_aborted) 
           {
-            _dbg3("Failed to connect to " << adr << ':' << port << ", because of timeout (" << conn_timeout << ")");
+            _dbg3("Failed to connect to " << adr << ':' << port << ", because of timeout (" << conn_timeout.count() << ")");
             new_connection_l->socket().close();
           }
       });
diff --git a/contrib/epee/include/net/levin_base.h b/contrib/epee/include/net/levin_base.h
index b680691ad..9dc1035af 100644
--- a/contrib/epee/include/net/levin_base.h
+++ b/contrib/epee/include/net/levin_base.h
@@ -29,6 +29,7 @@
 #ifndef _LEVIN_BASE_H_
 #define _LEVIN_BASE_H_
 
+#include <chrono>
 #include <cstdint>
 
 #include "byte_stream.h"
@@ -72,7 +73,7 @@ namespace levin
 #pragma pack(pop)
 
 
-#define LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED 0
+constexpr const std::chrono::milliseconds LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED{0};
 #define LEVIN_INITIAL_MAX_PACKET_SIZE  256*1024      // 256 KiB before handshake
 #define LEVIN_DEFAULT_MAX_PACKET_SIZE 100000000      //100MB by default after handshake
 
diff --git a/contrib/epee/include/net/levin_protocol_handler_async.h b/contrib/epee/include/net/levin_protocol_handler_async.h
index 341522bdc..9d80cb2d8 100644
--- a/contrib/epee/include/net/levin_protocol_handler_async.h
+++ b/contrib/epee/include/net/levin_protocol_handler_async.h
@@ -25,7 +25,7 @@
 // 
 
 #pragma once
-#include <boost/asio/deadline_timer.hpp>
+#include <boost/asio/steady_timer.hpp>
 #include <boost/uuid/uuid_generators.hpp>
 #include <boost/unordered_map.hpp>
 #include <boost/smart_ptr/make_shared.hpp>
@@ -100,10 +100,10 @@ public:
   typedef t_connection_context connection_context;
   uint64_t m_initial_max_packet_size;
   uint64_t m_max_packet_size;
-  uint64_t m_invoke_timeout;
+  std::chrono::milliseconds m_invoke_timeout;
 
   template<class callback_t>
-  int invoke_async(int command, message_writer in_msg, boost::uuids::uuid connection_id, const callback_t &cb, size_t timeout = LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED);
+  int invoke_async(int command, message_writer in_msg, boost::uuids::uuid connection_id, const callback_t &cb, std::chrono::milliseconds timeout = LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED);
 
   int send(epee::byte_slice message, const boost::uuids::uuid& connection_id);
   bool close(boost::uuids::uuid connection_id);
@@ -190,19 +190,19 @@ public:
   template <class callback_t>
   struct anvoke_handler: invoke_response_handler_base
   {
-    anvoke_handler(const callback_t& cb, uint64_t timeout,  async_protocol_handler& con, int command)
+    anvoke_handler(const callback_t& cb, const std::chrono::milliseconds timeout,  async_protocol_handler& con, int command)
       :m_cb(cb), m_timeout(timeout), m_con(con), m_timer(con.m_pservice_endpoint->get_io_context()), m_timer_started(false),
       m_cancel_timer_called(false), m_timer_cancelled(false), m_command(command)
     {
       if(m_con.start_outer_call())
       {
-        MDEBUG(con.get_context_ref() << "anvoke_handler, timeout: " << timeout);
-        m_timer.expires_from_now(boost::posix_time::milliseconds(timeout));
+        MDEBUG(con.get_context_ref() << "anvoke_handler, timeout: " << timeout.count());
+        m_timer.expires_after(timeout);
         m_timer.async_wait([&con, command, cb, timeout](const boost::system::error_code& ec)
         {
           if(ec == boost::asio::error::operation_aborted)
             return;
-          MINFO(con.get_context_ref() << "Timeout on invoke operation happened, command: " << command << " timeout: " << timeout);
+          MINFO(con.get_context_ref() << "Timeout on invoke operation happened, command: " << command << " timeout: " << timeout.count());
           epee::span<const uint8_t> fake;
           cb(LEVIN_ERROR_CONNECTION_TIMEDOUT, fake, con.get_context_ref());
           con.close();
@@ -215,11 +215,11 @@ public:
     {}
     callback_t m_cb;
     async_protocol_handler& m_con;
-    boost::asio::deadline_timer m_timer;
+    boost::asio::steady_timer m_timer;
     bool m_timer_started;
     bool m_cancel_timer_called;
     bool m_timer_cancelled;
-    uint64_t m_timeout;
+    const std::chrono::milliseconds m_timeout;
     int m_command;
     virtual bool handle(int res, const epee::span<const uint8_t> buff, typename async_protocol_handler::connection_context& context)
     {
@@ -247,26 +247,24 @@ public:
       if(!m_cancel_timer_called)
       {
         m_cancel_timer_called = true;
-        boost::system::error_code ignored_ec;
-        m_timer_cancelled = 1 == m_timer.cancel(ignored_ec);
+        m_timer_cancelled = 1 == m_timer.cancel();
       }
       return m_timer_cancelled;
     }
     virtual void reset_timer()
     {
-      boost::system::error_code ignored_ec;
-      if (!m_cancel_timer_called && m_timer.cancel(ignored_ec) > 0)
+      if (!m_cancel_timer_called && m_timer.cancel() > 0)
       {
         callback_t& cb = m_cb;
-        uint64_t timeout = m_timeout;
+        const auto timeout = m_timeout;
         async_protocol_handler& con = m_con;
         int command = m_command;
-        m_timer.expires_from_now(boost::posix_time::milliseconds(m_timeout));
+        m_timer.expires_after(m_timeout);
         m_timer.async_wait([&con, cb, command, timeout](const boost::system::error_code& ec)
         {
           if(ec == boost::asio::error::operation_aborted)
             return;
-          MINFO(con.get_context_ref() << "Timeout on invoke operation happened, command: " << command << " timeout: " << timeout);
+          MINFO(con.get_context_ref() << "Timeout on invoke operation happened, command: " << command << " timeout: " << timeout.count());
           epee::span<const uint8_t> fake;
           cb(LEVIN_ERROR_CONNECTION_TIMEDOUT, fake, con.get_context_ref());
           con.close();
@@ -279,7 +277,7 @@ public:
   std::list<boost::shared_ptr<invoke_response_handler_base> > m_invoke_response_handlers;
   
   template<class callback_t>
-  bool add_invoke_response_handler(const callback_t &cb, uint64_t timeout,  async_protocol_handler& con, int command)
+  bool add_invoke_response_handler(const callback_t &cb, const std::chrono::milliseconds timeout,  async_protocol_handler& con, int command)
   {
     CRITICAL_REGION_LOCAL(m_invoke_response_handlers_lock);
     if (m_protocol_released)
@@ -604,7 +602,7 @@ public:
   }
 
   template<class callback_t>
-  bool async_invoke(int command, message_writer in_msg, const callback_t &cb, size_t timeout = LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED)
+  bool async_invoke(int command, message_writer in_msg, const callback_t &cb, std::chrono::milliseconds timeout = LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED)
   {
     misc_utils::auto_scope_leave_caller scope_exit_handler = misc_utils::create_scope_leave_handler(
       boost::bind(&async_protocol_handler::finish_outer_call, this));
@@ -752,7 +750,7 @@ int async_protocol_handler_config<t_connection_context>::find_and_lock_connectio
 }
 //------------------------------------------------------------------------------------------
 template<class t_connection_context> template<class callback_t>
-int async_protocol_handler_config<t_connection_context>::invoke_async(int command, message_writer in_msg, boost::uuids::uuid connection_id, const callback_t &cb, size_t timeout)
+int async_protocol_handler_config<t_connection_context>::invoke_async(int command, message_writer in_msg, boost::uuids::uuid connection_id, const callback_t &cb, const std::chrono::milliseconds timeout)
 {
   async_protocol_handler<t_connection_context>* aph;
   int r = find_and_lock_connection(connection_id, aph);
diff --git a/contrib/epee/include/net/network_throttle.hpp b/contrib/epee/include/net/network_throttle.hpp
index fb39f69fc..46361e5fa 100644
--- a/contrib/epee/include/net/network_throttle.hpp
+++ b/contrib/epee/include/net/network_throttle.hpp
@@ -56,7 +56,6 @@
 #include <boost/uuid/random_generator.hpp>
 #include <boost/chrono.hpp>
 #include <boost/utility/value_init.hpp>
-#include <boost/asio/deadline_timer.hpp>
 #include <boost/date_time/posix_time/posix_time.hpp>
 #include "misc_language.h"
 #include <sstream>
diff --git a/contrib/epee/include/storages/levin_abstract_invoke2.h b/contrib/epee/include/storages/levin_abstract_invoke2.h
index 9d3dda0d6..0f5c35813 100644
--- a/contrib/epee/include/storages/levin_abstract_invoke2.h
+++ b/contrib/epee/include/storages/levin_abstract_invoke2.h
@@ -57,7 +57,7 @@ namespace epee
   namespace net_utils
   {
     template<class t_result, class t_arg, class callback_t, class t_transport>
-    bool async_invoke_remote_command2(const epee::net_utils::connection_context_base &context, int command, const t_arg& out_struct, t_transport& transport, const callback_t &cb, size_t inv_timeout = LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED)
+    bool async_invoke_remote_command2(const epee::net_utils::connection_context_base &context, int command, const t_arg& out_struct, t_transport& transport, const callback_t &cb, const std::chrono::milliseconds inv_timeout = levin::LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED)
     {
       const boost::uuids::uuid &conn_id = context.m_connection_id;
       typename serialization::portable_storage stg;
diff --git a/src/debug_utilities/object_sizes.cpp b/src/debug_utilities/object_sizes.cpp
index 4b5ff81db..789968b2c 100644
--- a/src/debug_utilities/object_sizes.cpp
+++ b/src/debug_utilities/object_sizes.cpp
@@ -72,7 +72,7 @@ int main(int argc, char* argv[])
   SL(boost::thread);
   SL(boost::asio::io_context);
   SL(boost::asio::executor_work_guard<boost::asio::io_context::executor_type>);
-  SL(boost::asio::deadline_timer);
+  SL(boost::asio::steady_timer);
 
   SL(cryptonote::DB_ERROR);
   SL(cryptonote::mdb_txn_safe);
diff --git a/src/device_trezor/trezor/transport.cpp b/src/device_trezor/trezor/transport.cpp
index 48fd9c7bd..ec39dc355 100644
--- a/src/device_trezor/trezor/transport.cpp
+++ b/src/device_trezor/trezor/transport.cpp
@@ -571,7 +571,7 @@ namespace trezor{
     return ping_int();
   }
 
-  bool UdpTransport::ping_int(boost::posix_time::time_duration timeout){
+  bool UdpTransport::ping_int(boost::asio::steady_timer::duration timeout){
     require_socket();
     try {
       std::string req = "PINGPING";
@@ -619,7 +619,7 @@ namespace trezor{
     m_socket.reset(new udp::socket(m_io_service));
     m_socket->open(udp::v4());
 
-    m_deadline.expires_at(boost::posix_time::pos_infin);
+    m_deadline.expires_after(boost::asio::steady_timer::duration::max());
     check_deadline();
 
     m_proto->session_begin(*this);
@@ -701,14 +701,14 @@ namespace trezor{
     return static_cast<size_t>(len);
   }
 
-  ssize_t UdpTransport::receive(void * buff, size_t size, boost::system::error_code * error_code, bool no_throw, boost::posix_time::time_duration timeout){
+  ssize_t UdpTransport::receive(void * buff, size_t size, boost::system::error_code * error_code, bool no_throw, const boost::asio::steady_timer::duration timeout){
     boost::system::error_code ec;
     boost::asio::mutable_buffer buffer = boost::asio::buffer(buff, size);
 
     require_socket();
 
     // Set a deadline for the asynchronous operation.
-    m_deadline.expires_from_now(timeout);
+    m_deadline.expires_after(timeout);
 
     // Set up the variables that receive the result of the asynchronous
     // operation. The error code is set to would_block to signal that the
@@ -766,7 +766,7 @@ namespace trezor{
     // Check whether the deadline has passed. We compare the deadline against
     // the current time since a new asynchronous operation may have moved the
     // deadline before this actor had a chance to run.
-    if (m_deadline.expires_at() <= boost::asio::deadline_timer::traits_type::now())
+    if (m_deadline.expiry() <= boost::asio::steady_timer::clock_type::now())
     {
       // The deadline has passed. The outstanding asynchronous operation needs
       // to be cancelled so that the blocked receive() function will return.
@@ -778,7 +778,7 @@ namespace trezor{
 
       // There is no longer an active deadline. The expiry is set to positive
       // infinity so that the actor takes no action until a new deadline is set.
-      m_deadline.expires_at(boost::posix_time::pos_infin);
+      m_deadline.expires_after(boost::asio::steady_timer::duration::max());
     }
 
     // Put the actor back to sleep.
diff --git a/src/device_trezor/trezor/transport.hpp b/src/device_trezor/trezor/transport.hpp
index 91cb01772..9ac95f3bb 100644
--- a/src/device_trezor/trezor/transport.hpp
+++ b/src/device_trezor/trezor/transport.hpp
@@ -32,7 +32,7 @@
 
 
 #include <boost/asio.hpp>
-#include <boost/asio/deadline_timer.hpp>
+#include <boost/asio/steady_timer.hpp>
 #include <boost/array.hpp>
 #include <boost/utility/string_ref.hpp>
 
@@ -233,11 +233,11 @@ namespace trezor {
 
   private:
     void require_socket();
-    ssize_t receive(void * buff, size_t size, boost::system::error_code * error_code=nullptr, bool no_throw=false, boost::posix_time::time_duration timeout=boost::posix_time::seconds(10));
+    ssize_t receive(void * buff, size_t size, boost::system::error_code * error_code=nullptr, bool no_throw=false, boost::asio::steady_timer::duration timeout = std::chrono::seconds(10));
     void check_deadline();
     static void handle_receive(const boost::system::error_code& ec, std::size_t length,
                                boost::system::error_code* out_ec, std::size_t* out_length);
-    bool ping_int(boost::posix_time::time_duration timeout=boost::posix_time::milliseconds(1500));
+    bool ping_int(boost::asio::steady_timer::duration = std::chrono::milliseconds(1500));
 
     std::shared_ptr<Protocol> m_proto;
     std::string m_device_host;
@@ -245,7 +245,7 @@ namespace trezor {
 
     std::unique_ptr<udp::socket> m_socket;
     boost::asio::io_context m_io_service;
-    boost::asio::deadline_timer m_deadline;
+    boost::asio::steady_timer m_deadline;
     udp::endpoint m_endpoint;
   };
 
diff --git a/src/p2p/net_node.h b/src/p2p/net_node.h
index 08db07604..187e67185 100644
--- a/src/p2p/net_node.h
+++ b/src/p2p/net_node.h
@@ -230,7 +230,7 @@ namespace nodetool
         m_config.m_net_config.packet_max_size = P2P_DEFAULT_PACKET_MAX_SIZE;
         m_config.m_net_config.config_id = 0;
         m_config.m_net_config.connection_timeout = P2P_DEFAULT_CONNECTION_TIMEOUT;
-        m_config.m_net_config.ping_connection_timeout = P2P_DEFAULT_PING_CONNECTION_TIMEOUT;
+        m_config.m_net_config.ping_connection_timeout = std::chrono::milliseconds{P2P_DEFAULT_PING_CONNECTION_TIMEOUT};
         m_config.m_net_config.send_peerlist_sz = P2P_DEFAULT_PEERS_IN_HANDSHAKE;
         m_config.m_support_flags = 0; // only set in public zone
       }
diff --git a/src/p2p/net_node.inl b/src/p2p/net_node.inl
index 6f68645bd..b3925fc19 100644
--- a/src/p2p/net_node.inl
+++ b/src/p2p/net_node.inl
@@ -988,7 +988,7 @@ namespace nodetool
     for (auto& zone : m_network_zones)
     {
       zone.second.m_net_server.get_config_object().set_handler(this);
-      zone.second.m_net_server.get_config_object().m_invoke_timeout = P2P_DEFAULT_INVOKE_TIMEOUT;
+      zone.second.m_net_server.get_config_object().m_invoke_timeout = std::chrono::milliseconds{P2P_DEFAULT_INVOKE_TIMEOUT};
 
       if (!zone.second.m_bind_ip.empty())
       {
@@ -1073,8 +1073,8 @@ namespace nodetool
     })); // lambda
 
     network_zone& public_zone = m_network_zones.at(epee::net_utils::zone::public_);
-    public_zone.m_net_server.add_idle_handler(boost::bind(&node_server<t_payload_net_handler>::idle_worker, this), 1000);
-    public_zone.m_net_server.add_idle_handler(boost::bind(&t_payload_net_handler::on_idle, &m_payload_handler), 1000);
+    public_zone.m_net_server.add_idle_handler(boost::bind(&node_server<t_payload_net_handler>::idle_worker, this), std::chrono::seconds{1});
+    public_zone.m_net_server.add_idle_handler(boost::bind(&t_payload_net_handler::on_idle, &m_payload_handler), std::chrono::seconds{1});
 
     //here you can set worker threads count
     int thrds_count = 10;
@@ -1234,7 +1234,7 @@ namespace nodetool
         LOG_DEBUG_CC(context, " COMMAND_HANDSHAKE(AND CLOSE) INVOKED OK");
       }
       context_ = context;
-    }, P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT);
+    }, std::chrono::milliseconds{P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT});
 
     if(r)
     {
@@ -2563,7 +2563,7 @@ namespace nodetool
         
         f(context_, rsp.support_flags);
       },
-      P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT
+      std::chrono::milliseconds{P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT}
     );
 
     return r;
diff --git a/src/p2p/p2p_protocol_defs.h b/src/p2p/p2p_protocol_defs.h
index 43cc6b03e..cc0c6cf5b 100644
--- a/src/p2p/p2p_protocol_defs.h
+++ b/src/p2p/p2p_protocol_defs.h
@@ -136,10 +136,10 @@ namespace nodetool
       KV_SERIALIZE(config_id)
     END_KV_SERIALIZE_MAP()
 
+    std::chrono::milliseconds ping_connection_timeout;
     uint32_t max_out_connection_count;
     uint32_t max_in_connection_count;
     uint32_t connection_timeout;
-    uint32_t ping_connection_timeout;
     uint32_t handshake_interval;
     uint32_t packet_max_size;
     uint32_t config_id;
diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index 5b680b523..bf4cdb4cf 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -350,7 +350,7 @@ namespace cryptonote
       http_login.emplace(std::move(rpc_config->login->username), std::move(rpc_config->login->password).password());
 
     if (m_rpc_payment)
-      m_net_server.add_idle_handler([this](){ return m_rpc_payment->on_idle(); }, 60 * 1000);
+      m_net_server.add_idle_handler([this](){ return m_rpc_payment->on_idle(); }, std::chrono::minutes{1});
 
     bool store_ssl_key = !restricted && rpc_config->ssl_options && rpc_config->ssl_options.auth.certificate_path.empty();
     const auto ssl_base_path = (boost::filesystem::path{data_dir} / "rpc_ssl").string();
diff --git a/src/wallet/wallet_rpc_server.cpp b/src/wallet/wallet_rpc_server.cpp
index f4a1b0d19..c64e45cdd 100644
--- a/src/wallet/wallet_rpc_server.cpp
+++ b/src/wallet/wallet_rpc_server.cpp
@@ -267,7 +267,7 @@ namespace tools
         }
       }
       return true;
-    }, auto_refresh_evaluation_ms.count());
+    }, auto_refresh_evaluation_ms);
     m_net_server.add_idle_handler([this](){
       if (m_stop.load(std::memory_order_relaxed))
       {
@@ -275,7 +275,7 @@ namespace tools
         return false;
       }
       return true;
-    }, 500);
+    }, std::chrono::milliseconds{500});
 
     //DO NOT START THIS SERVER IN MORE THEN 1 THREADS WITHOUT REFACTORING
     return epee::http_server_impl_base<wallet_rpc_server, connection_context>::run(1, true);
diff --git a/tests/net_load_tests/clt.cpp b/tests/net_load_tests/clt.cpp
index ab5de976f..d10089db6 100644
--- a/tests/net_load_tests/clt.cpp
+++ b/tests/net_load_tests/clt.cpp
@@ -50,7 +50,7 @@ using namespace net_load_tests;
 namespace
 {
   const size_t CONNECTION_COUNT = 100000;
-  const size_t CONNECTION_TIMEOUT = 10000;
+  constexpr const std::chrono::seconds CONNECTION_TIMEOUT{10};
   const size_t DEFAULT_OPERATION_TIMEOUT = 30000;
   const size_t RESERVED_CONN_CNT = 1;
 
diff --git a/tests/net_load_tests/srv.cpp b/tests/net_load_tests/srv.cpp
index dd22b1b61..844f2a3cb 100644
--- a/tests/net_load_tests/srv.cpp
+++ b/tests/net_load_tests/srv.cpp
@@ -28,6 +28,7 @@
 // 
 // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
+#include <boost/asio/steady_timer.hpp>
 #include <boost/thread/mutex.hpp>
 #include <boost/thread/thread.hpp>
 
@@ -189,10 +190,10 @@ namespace
       if (0 < count)
       {
         // Perhaps not all connections were closed, try to close it after 7 seconds
-        boost::shared_ptr<boost::asio::deadline_timer> sh_deadline(new boost::asio::deadline_timer(m_tcp_server.get_io_context(), boost::posix_time::seconds(7)));
+        std::shared_ptr<boost::asio::steady_timer> sh_deadline(std::make_shared<boost::asio::steady_timer>(m_tcp_server.get_io_context(), std::chrono::seconds(7)));
         sh_deadline->async_wait([=](const boost::system::error_code& ec)
         {
-          boost::shared_ptr<boost::asio::deadline_timer> t = sh_deadline; // Capture sh_deadline
+          std::shared_ptr<boost::asio::steady_timer> t = sh_deadline; // Capture sh_deadline
           if (!ec)
           {
             close_connections(cmd_conn_id);
@@ -229,7 +230,7 @@ int main(int argc, char** argv)
 
   srv_levin_commands_handler *commands_handler = new srv_levin_commands_handler(tcp_server);
   tcp_server.get_config_object().set_handler(commands_handler, [](epee::levin::levin_commands_handler<test_connection_context> *handler) { delete handler; });
-  tcp_server.get_config_object().m_invoke_timeout = 10000;
+  tcp_server.get_config_object().m_invoke_timeout = std::chrono::seconds{10};
   //tcp_server.get_config_object().m_max_packet_size = max_packet_size;
 
   if (!tcp_server.run_server(thread_count, true))
diff --git a/tests/unit_tests/epee_boosted_tcp_server.cpp b/tests/unit_tests/epee_boosted_tcp_server.cpp
index 4b0630299..d48818f8c 100644
--- a/tests/unit_tests/epee_boosted_tcp_server.cpp
+++ b/tests/unit_tests/epee_boosted_tcp_server.cpp
@@ -282,7 +282,7 @@ TEST(test_epee_connection, test_lifetime)
     while (shared_state->sock_count);
     ASSERT_TRUE(shared_state->get_connections_count() == 0);
     constexpr auto DELAY = 30;
-    constexpr auto TIMEOUT = 1;
+    constexpr std::chrono::milliseconds TIMEOUT{1};
     while (server.get_connections_count()) {
       server.get_config_shared()->del_in_connections(
         server.get_config_shared()->get_in_connections_count()
diff --git a/tests/unit_tests/epee_levin_protocol_handler_async.cpp b/tests/unit_tests/epee_levin_protocol_handler_async.cpp
index 967708111..3e1d65d12 100644
--- a/tests/unit_tests/epee_levin_protocol_handler_async.cpp
+++ b/tests/unit_tests/epee_levin_protocol_handler_async.cpp
@@ -185,7 +185,7 @@ namespace
   class async_protocol_handler_test : public ::testing::Test
   {
   public:
-    const static uint64_t invoke_timeout = 5 * 1000;
+    constexpr const static std::chrono::seconds invoke_timeout{5};
     const static size_t max_packet_size = 10 * 1024 * 1024;
 
     typedef std::unique_ptr<test_connection> test_connection_ptr;
diff --git a/tests/unit_tests/node_server.cpp b/tests/unit_tests/node_server.cpp
index 96d74e974..b5c0fa1ae 100644
--- a/tests/unit_tests/node_server.cpp
+++ b/tests/unit_tests/node_server.cpp
@@ -690,7 +690,7 @@ TEST(cryptonote_protocol_handler, race_condition)
             net_node.core_protocol->process_payload_sync_data(msg.payload_data, context, true);
             handshaked.raise();
           },
-          P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT
+          std::chrono::milliseconds{P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT}
         );
         return true;
       }
@@ -1202,7 +1202,7 @@ TEST(node_server, race_condition)
         EXPECT_TRUE(code >= 0);
         handshaked.raise();
       },
-      P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT
+      std::chrono::milliseconds{P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT}
     );
     handshaked.wait();
     boost::asio::post(conn->strand_, [conn]{