diff --git a/source/CMakeLists.txt b/source/CMakeLists.txt
index 87ca686..5289d63 100644
--- a/source/CMakeLists.txt
+++ b/source/CMakeLists.txt
@@ -7,6 +7,7 @@ pkg_check_modules(GTK REQUIRED gtkmm-3.0)
 include_directories(${GTK_INCLUDE_DIRS})
 link_directories(${GTK_LIBRARY_DIRS})
 add_definitions(${GTK_CFLAGS_OTHER})
+find_package(ICU REQUIRED COMPONENTS uc dt in io)
 
 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wall -Wextra -Werror -Wmissing-declarations -fdiagnostics-color=always -std=c++2a -g")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pedantic -Wall -Wextra -Werror -Wmissing-declarations -fdiagnostics-color=always -g")
@@ -21,5 +22,5 @@ set(LIBRARIES
         pthread)
 
 add_executable(ubl-settings-datetime ${SOURCE_FILES})
-target_link_libraries(ubl-settings-datetime ${LIBRARIES})
-install(TARGETS ubl-settings-datetime DESTINATION bin)
+target_link_libraries(ubl-settings-datetime ${LIBRARIES} ${ICU_LIBRARIES})
+install(TARGETS ubl-settings-datetime DESTINATION bin)
\ No newline at end of file
diff --git a/source/ubl-settings-datetime.cc b/source/ubl-settings-datetime.cc
index fe0e88e..3bc6bcf 100644
--- a/source/ubl-settings-datetime.cc
+++ b/source/ubl-settings-datetime.cc
@@ -22,6 +22,16 @@
 #include <string>
 #include <sstream>
 #include <vector>
+#include <unicode/unistr.h>
+#include <unicode/ustdio.h>
+#include <unicode/uloc.h>
+#include <unicode/uldnames.h>
+#include "unicode/utypes.h"
+#include "unicode/utext.h"
+
+#include <unicode/timezone.h>
+#include <unicode/timezone.h>
+#include <unicode/calendar.h>
 #include "ubl-settings-datetime.h"
 using namespace std;
 
@@ -36,7 +46,8 @@ bool flag_ntp = false;
 bool flag_update = false;
 
 CmdArgParser::CmdArgParser(const std::string& p_name, const std::string& p_description, const std::string& p_help)
-: Glib::OptionGroup{p_name, p_description, p_help}{
+: Glib::OptionGroup{p_name, p_description, p_help}
+{
     Glib::OptionEntry socketIDArg;
     socketIDArg.set_long_name("socket-id");
     socketIDArg.set_short_name('s');
@@ -97,6 +108,7 @@ void MainWindow::settings(){
         lblRegGlob->set_sensitive(false);
         lblZone1Glob->set_sensitive(false);
         lblDateTimeSetting->set_sensitive(false);
+
     }
 }
 
@@ -108,7 +120,6 @@ int MainWindow::check_root(){
     }
     return 0;
 }
-
 void MainWindow::lacalization(){
     txtDate->set_tooltip_text(gettext("Date of\nFormat: DD.MM.YYYY"));
     lblSynchronizebChkGLob->set_text(gettext("Synchronize via NTP"));
@@ -135,10 +146,14 @@ void MainWindow::lacalization(){
     lblBanerStopNtp->set_text(gettext("Active service detected\nAutomatic time and date synchronization service detected"));
     lblNtpStop->set_text(gettext("Stop the synchronization service"));
     lblNtpClose->set_text(gettext("Close"));
+    //_lblSynchronizebChk->set_text(gettext("Synchronize via NTP"));
 }
 
 void MainWindow::flag_block_gui(){
     if (flag_datetime==true){
+        //numTimeHrs->set_sensitive(false);
+        //numTimeMin->set_sensitive(false);
+        //txtDate->set_sensitive(false);
         btnUpdateDateTime->set_sensitive(false);
         numTimeHrs->set_sensitive(false);
         numTimeMin->set_sensitive(false);
@@ -148,12 +163,14 @@ void MainWindow::flag_block_gui(){
         btnHardwareTime->set_sensitive(false);
         lblTime->set_sensitive(false);
         lblData->set_sensitive(false);
+        //cbxSynchronizeNtpGlob->set_sensitive(false);
     }
     if (flag_timezone==true){
         cbRegion->set_sensitive(false);
         cbZone->set_sensitive(false);
         cbRegionGlob->set_sensitive(false);
         cbZoneGlob->set_sensitive(false);
+        //btnChooseDate->set_sensitive(false);
         cbDhcp->set_sensitive(false);
     }
     if (flag_ntp==true){
@@ -163,6 +180,7 @@ void MainWindow::flag_block_gui(){
     }
     if (flag_update==true){
         lblDateTimeSettingGlob->set_sensitive(false);
+        //lblSynchronizebChkGLob->set_sensitive(false);
         cbxSynchronizeNtpGlob->set_sensitive(false);
         lblTimeZoneGlob->set_sensitive(false);
         lblRegGlob->set_sensitive(false);
@@ -178,8 +196,8 @@ void MainWindow::add_CSS(){
     Glib::RefPtr<Gtk::CssProvider> cssProvider = Gtk::CssProvider::create();
     cssProvider->load_from_path(path_css);   
     Glib::RefPtr<Gtk::StyleContext> styleContext = Gtk::StyleContext::create();
-    Glib::RefPtr<Gdk::Screen> screen = Gdk::Screen::get_default();
-    styleContext->add_provider_for_screen(screen, cssProvider, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    Glib::RefPtr<Gdk::Screen> screen = Gdk::Screen::get_default();//get default screen
+    styleContext->add_provider_for_screen(screen, cssProvider, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);//add provider for screen in all application
     Glib::RefPtr<Gtk::StyleContext> context = boxColor->get_style_context();
     Glib::RefPtr<Gtk::StyleContext> context_lbl_head = lblHead->get_style_context();
     context->add_class("cssboxColor1");
@@ -216,6 +234,7 @@ void MainWindow::get_builder(){
     builder->get_widget("lblRegGlob",lblRegGlob);
     builder->get_widget("lblZone1Glob",lblZone1Glob);
     builder->get_widget("lblTimeZoneGlob",lblTimeZoneGlob);
+    //builder->get_widget("lblSynchronizebChk",_lblSynchronizebChk);
     builder->get_widget("lblSynchronizebChkGLob",lblSynchronizebChkGLob);
     builder->get_widget("lblSynchronizeBtn",lblSynchronizeBtn);
     builder->get_widget("lblDateTimeSettingGlob",lblDateTimeSettingGlob);
@@ -230,9 +249,11 @@ void MainWindow::get_builder(){
     builder->get_widget("lblNtpStop",lblNtpStop);
     builder->get_widget("lblNtpClose",lblNtpClose);
     builder->get_widget("lblBanerStopNtp",lblBanerStopNtp);
+    
+    //builder->get_widget("cbxSynchronizeNtp",cbxSynchronizeNtp);
+    
     this->add_CSS();
 }
-
 void MainWindow::gui_exit(){
     exit(1);
 }
@@ -263,7 +284,6 @@ void MainWindow::event(){
     btnNtpWinClose->signal_clicked().connect(sigc::mem_fun(*this, &MainWindow::wind_close_ntp));
     btnNtpStop->signal_clicked().connect(sigc::mem_fun(*this, &MainWindow::stop_ntp));
 }
-
 void MainWindow::wind_close_ntp(){
     windowsNnpClose->hide();
 }
@@ -282,6 +302,7 @@ void MainWindow::stop_ntp(){
             this->call(cmd.c_str());
         }
     }
+    
     system(cmd.c_str());
     this->update_time_date();
 
@@ -307,6 +328,7 @@ bool MainWindow::focus_ntp(GdkEventFocus* event){
         cmd = "/usr/bin/ubconfig set network NTPSERVERS=" + txtNtpServer->get_text();
         this->call(cmd.c_str());
         }
+        
     return true;
 }
 
@@ -447,6 +469,8 @@ void MainWindow::get_config(){
     this->update_hour_minute();
     this->update_calendar();
     this->enry_dhcp_mess(); 
+    
+    
     string read_reg_zon_cfg = this->call("/usr/bin/ubconfig get clock ZONE");
     if ((read_reg_zon_cfg != "") && (strstr(read_reg_zon_cfg.c_str() ,"(null)")==NULL)){
         read_reg_zon_cfg = read_reg_zon_cfg.substr(read_reg_zon_cfg.find("=")+1,read_reg_zon_cfg.length());
@@ -463,15 +487,29 @@ void MainWindow::get_config(){
 }
 
 void MainWindow::enter_zone(){
-    Glib::ustring zone_text = cbZone->get_active_text();
-    Glib::ustring reg_text = cbRegion->get_active_text();
-    if(!(zone_text.empty()) && !(reg_text.empty())){
-        str_zone=zone_text.substr(zone_text.find(") ")+2,zone_text.length());
-        str_region=reg_text;
-        string cmd = "rm -f /etc/localtime";
-        system(cmd.c_str());
-        string cmd1 = "ln -s /usr/share/zoneinfo/" + str_region + "/" + str_zone+" /etc/localtime";
-        system(cmd1.c_str());
+    string reg_text = cbRegion->get_active_text();
+    int activ_index =  cbZone->get_active_row_number();
+    string zone_text = "";
+    if(!(reg_text.empty())){
+        int index=0;
+        for (const auto &zone :time_reg_map.at(reg_text)){
+            if (index==activ_index){
+                zone_text=zone;
+            }
+            index+=1;
+        }
+        if (!(zone_text.empty())){
+            str_zone=zone_text;
+            str_region=reg_text;
+            string cmd = "rm -f /etc/localtime";
+            system(cmd.c_str());
+            string cmd1 = "ln -s /usr/share/zoneinfo/" + str_region + "/" + str_zone+" /etc/localtime";
+            system(cmd1.c_str());
+        }
+        else{
+            str_zone="";
+            str_region="";
+        }
     }
     else{
         str_zone="";
@@ -489,16 +527,30 @@ void MainWindow::parse_text_date(){
 }
 
 void MainWindow::enter_zone_glob(){
-    Glib::ustring zone_text = cbZoneGlob->get_active_text();
-    Glib::ustring reg_text = cbRegionGlob->get_active_text();
-    if(!(zone_text.empty()) && !(reg_text.empty())){
+    string reg_text = cbRegionGlob->get_active_text();
+    int activ_index =  cbZoneGlob->get_active_row_number();
+    string zone_text="";
+    if(!(reg_text.empty())){
+        int index=0;
+        for (const auto &zone :time_reg_map.at(reg_text)){
+            if (index==activ_index){
+                zone_text=zone;
+            }
+            index+=1;
+        }
+        if (!(zone_text.empty())){
         //str_zoneGlob = zone_text.substr(zone_text.find(") ")+2,zone_text.length());
-        string cmd = "/usr/bin/ubconfig set clock ZONE=" +reg_text +"/" + zone_text;
-        system(cmd.c_str());
+            string cmd = "/usr/bin/ubconfig set clock ZONE=" +reg_text +"/" + zone_text;
+            system(cmd.c_str());
+        }
+        else{
+            str_zoneGlob="";
+            str_region_glob="";
+        }
     }
     else{
         str_zoneGlob="";
-            str_region_glob="";
+        str_region_glob="";
     }
 }
 
@@ -518,9 +570,12 @@ void MainWindow::set_ntp_toggle_glob(){
 
 void MainWindow::append_region_zone(string region, string zone){
     int index = 0;
-    for ( const auto &text : time_reg_map ) {
-        cbRegion->append(text.first);
-        cbRegionGlob->append(text.first);
+    string reg_local = "";
+    for (auto &text : time_reg_map ) {
+        reg_local = text.first;
+        //reg_local = string(gettext(reg_local.c_str()));
+        cbRegion->append(reg_local);
+        cbRegionGlob->append(reg_local);
         if (text.first == region){
             cbRegionGlob->set_active(index);
             cbRegion->set_active(index);   
@@ -528,9 +583,13 @@ void MainWindow::append_region_zone(string region, string zone){
         index+=1;
     }
     index = 0;
+    string zone_mixing = "";
+    string path_dir = "";
     for (const auto &_str_zone : time_reg_map.at(region)){
-        cbZone->append(_str_zone);
-        cbZoneGlob->append(_str_zone);
+        path_dir=region+"/"+_str_zone;
+        zone_mixing = this->zone_file_read(path_dir) + string(gettext(_str_zone.c_str()));
+        cbZone->append(zone_mixing);
+        cbZoneGlob->append(zone_mixing);
         if (_str_zone!=""){
             if (_str_zone == zone){
                 cbZone->set_active(index);
@@ -541,7 +600,6 @@ void MainWindow::append_region_zone(string region, string zone){
     }
     
 }
-
 string MainWindow::call(string cmd){
     FILE *fp;
     int status;
@@ -551,6 +609,7 @@ string MainWindow::call(string cmd){
         exit(1);
     }  
     while (fgets(path, PATH_MAX, fp) != NULL){
+        //printf("%s", path);
         break;  
     }
     status = pclose(fp);
@@ -562,23 +621,35 @@ string MainWindow::call(string cmd){
 }
 
 void MainWindow::append_zone(){
-    Glib::ustring text = cbRegion->get_active_text();
     cbZone->remove_all();
+    Glib::ustring text = cbRegion->get_active_text();
+    string zone_mixing=""; 
+    string path_dir=""; 
+    
     if(!(text.empty())){
         str_region = text;
         for (const auto &_str_zone : time_reg_map.at(str_region)){
-            cbZone->append(_str_zone);
+            path_dir=str_region+"/"+_str_zone;
+            zone_mixing = this->zone_file_read(path_dir) + string(gettext(_str_zone.c_str()));
+            cbZone->append(zone_mixing);
+            //cbZone->append(_str_zone);
         }
     }
 }
 
 void MainWindow::append_zone_glob(){
-    Glib::ustring text = cbRegionGlob->get_active_text();
     cbZoneGlob->remove_all();
+    Glib::ustring text = cbRegionGlob->get_active_text();
+    string zone_mixing=""; 
+    string path_dir="";
+    
     if(!(text.empty())){
         str_region_glob = text;
         for (const auto &_str_zone : time_reg_map.at(str_region_glob)){
-            cbZoneGlob->append(_str_zone);
+            path_dir=str_region+"/"+_str_zone;
+            zone_mixing = this->zone_file_read(path_dir) + string(gettext(_str_zone.c_str()));
+            cbZoneGlob->append(zone_mixing);
+            //cbZoneGlob->append(_str_zone);
         }
     }
 }
@@ -595,6 +666,7 @@ void MainWindow::wrapper_update_time_date(){
 }
 
 void MainWindow::update_time_date(){
+    //this->enter_zone();
     string cmd = "";
     if ((year!=0) && (month !=0) && (day !=0)){
         string str_month = "";
@@ -642,29 +714,24 @@ void MainWindow::update_time_date(){
     system(cmd.c_str());
 }
 
-
 void MainWindow::post_entry_data(){
     string cmd = "";
-    string data = txtDate->get_text();
-    if (data.length()==10){
-        string str_day = data.substr(0,2);
-        string str_month = data.substr(3,2);
-        string str_year = data.substr(6,data.length());
-        cmd = "date +%Y%m%d -s \"" + str_year+
-        str_month+str_day+"\"";
-        string str_error_clock = this->call(cmd);
-        size_t index = str_error_clock.find("date: ");
-        if (index==std::string::npos){
+        string data = txtDate->get_text();
+        if (data.length()==10){
+            string str_day = data.substr(0,2);
+            string str_month = data.substr(3,2);
+            string str_year = data.substr(6,data.length());
+            cmd = "date +%Y%m%d -s \"" + str_year+
+            str_month+str_day+"\"";
+            string str_error_clock = this->call(cmd);
+            size_t index = str_error_clock.find("date: ");
+            if (index==std::string::npos){  
+            }
         }
         else{
             lblMessage->set_text(gettext("Incorrect date format"));
-            mess_dchp->show(); 
+            mess_dchp->show();   
         }
-    }
-    else{
-        lblMessage->set_text(gettext("Incorrect date format"));
-        mess_dchp->show();   
-    }
 }
 
 void MainWindow::update_hour_minute(){
@@ -703,7 +770,7 @@ void MainWindow::read_file(){
     std::string line;
     namespace fs = std::filesystem;
     for (const auto & entry : fs::directory_iterator("/usr/share/zoneinfo/")){
-        std::ifstream in(entry.path());
+        std::ifstream in(entry.path()); // окрываем файл для чтения
         if (in.is_open()){
         string key_reg = entry.path().filename().string();
         string path_dir = "/usr/share/zoneinfo/"+key_reg;
@@ -715,16 +782,17 @@ void MainWindow::read_file(){
             vector<string> zone; 
             zone.push_back("");
             for (const auto & entry_zone : fs::directory_iterator(path_dir)){
-                std::ifstream in1(entry_zone.path());
+                std::ifstream in1(entry_zone.path()); // окрываем файл для чтения
                 if (in1.is_open()){
                     string key_zone = entry_zone.path().filename().string();
                     if (key_zone.length()!=0 || key_zone!=" "){
-                        zone.push_back(string(gettext(key_zone.c_str())));
+                        zone.push_back(key_zone);
                     }
                 }
                 in1.close();
             }
-            key_reg = string(gettext(key_reg.c_str()));
+               
+            key_reg = string(key_reg);
             time_reg_map.insert({key_reg, zone});  
             }}}}
             }
@@ -733,6 +801,39 @@ void MainWindow::read_file(){
     }
 }
 
+string MainWindow::zone_file_read(string zone){
+    UErrorCode success = U_ZERO_ERROR;
+    UDate curDate;
+    int32_t stdOffset,dstOffset;
+    U_ICU_NAMESPACE::TimeZone *tzWest = U_ICU_NAMESPACE::TimeZone::createTimeZone(zone.c_str());
+    U_ICU_NAMESPACE::Calendar* calendar = U_ICU_NAMESPACE::Calendar::createInstance(success);
+    curDate = calendar->getNow();
+    tzWest->getOffset(curDate,true,stdOffset,dstOffset,success);
+    int offset = stdOffset/(1000*60*60);
+    string str_utc = "";
+    if (offset>=0){
+        if (offset<=9){
+            str_utc = "(UTC +0" + to_string(offset) + ") ";
+        }
+        else{
+            str_utc = "(UTC +" + to_string(offset) + ") ";
+        }
+        
+    }
+    else{
+        if (offset>=-9){
+            offset*=-1;
+            str_utc = "(UTC -0" + to_string(offset) + ") ";
+        }
+        else{
+            str_utc = "(UTC " + to_string(offset) + ") ";
+        }
+    }
+    delete calendar;
+    delete tzWest;
+    return str_utc;
+}
+
 vector<std::string> MainWindow::split(const std::string &s, char delim){
     std::stringstream ss(s);
     std::string item;
@@ -744,7 +845,8 @@ vector<std::string> MainWindow::split(const std::string &s, char delim){
 }
 
 SettingsPlug::SettingsPlug(::Window p_socketID, Glib::RefPtr<Gtk::Builder> builder)
-: Gtk::Plug{p_socketID}{   
+: Gtk::Plug{p_socketID}
+{   
     builder->get_widget("plugBox", plugBox);
     plugBox->get_parent()->remove(*plugBox);
     add(*plugBox);
diff --git a/source/ubl-settings-datetime.h b/source/ubl-settings-datetime.h
index dd8ff92..33abbd2 100644
--- a/source/ubl-settings-datetime.h
+++ b/source/ubl-settings-datetime.h
@@ -21,6 +21,16 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <stdio.h>
+#include <unicode/unistr.h>
+#include <unicode/ustdio.h>
+#include <unicode/uloc.h>
+#include <unicode/uldnames.h>
+#include "unicode/utypes.h"
+#include "unicode/utext.h"
+
+#include <unicode/timezone.h>
+#include <unicode/timezone.h>
+#include <unicode/calendar.h>
 using namespace std;
 
 extern string path_app;
@@ -81,6 +91,7 @@ class MainWindow : public Gtk::ApplicationWindow {
         void stop_ntp();
         void wind_close_ntp();
         void wrapper_update_time_date();
+        string zone_file_read(string zone);
         string str_remove(std::string& source, const std::string to_remove);
         vector<std::string> split(const std::string &s, char delim);
     private:
@@ -130,6 +141,7 @@ class MainWindow : public Gtk::ApplicationWindow {
         Gtk::Entry *txtNtpServer;
         Gtk::Entry *txtDate;
         std::map <string, vector<string>> time_reg_map;
+        std::map <string, string> time_reg_map_local;
         unsigned int year=0;
         unsigned int month=0;
         unsigned int day=0;
diff --git a/test b/test
new file mode 100755
index 0000000..cd1ec71
Binary files /dev/null and b/test differ