diff --git a/source/ubl-settings-datetime.c b/source/ubl-settings-datetime.c
index 06b89b3..401abdb 100644
--- a/source/ubl-settings-datetime.c
+++ b/source/ubl-settings-datetime.c
@@ -314,8 +314,22 @@ void *on_sync_error(void*){
     return NULL;
 }
 
+void yon_date_tooltip_update(main_window *widgets){
+    char *format = yon_settings_configuration_get(date_format_parameter);
+    char *temp = yon_char_replace(format,"%Y",YEAR_FORMAT_LABEL);
+    char *month_temp = yon_char_replace(temp,"%m",MONTH_FORMAT_LABEL);
+    char *day_temp = yon_char_replace(month_temp,"%d",DAY_FORMAT_LABEL);
+    char *tooltip = yon_char_unite(DATE_DORMAT_TOOLTIP_LABEL,": ",day_temp,NULL);
+    gtk_widget_set_tooltip_text(widgets->DateEntry,tooltip);
+    free(tooltip);
+    free(temp);
+    free(month_temp);
+    free(day_temp);
+}
+
 void on_date_format_changed(GtkWidget *, main_window *widgets){
     yon_interface_update(widgets);
+    yon_date_tooltip_update(widgets);
 }
 
 void *yon_sync_thread_start(void *arg){
@@ -531,6 +545,7 @@ void yon_main_window_complete(main_window *widgets){
     yon_load_proceed(YON_CONFIG_LOCAL);
     yon_interface_update(widgets);
 	yon_save_window_set_postsave_function(on_save_done,widgets);
+    yon_date_tooltip_update(widgets);
 }
 
 int main(int argc, char *argv[]){ 
diff --git a/source/ubl-settings-datetime.h b/source/ubl-settings-datetime.h
index a49b374..86e0c45 100644
--- a/source/ubl-settings-datetime.h
+++ b/source/ubl-settings-datetime.h
@@ -149,4 +149,5 @@ config_str yon_char_parsed_sort(config_str parsed, int size);
 int yon_char_parsed_compare(const void *a, const void *b);
 void on_save_done(main_window *widgets, config_str output, int size);
 
-void on_date_format_changed(GtkWidget *, main_window *widgets);
\ No newline at end of file
+void on_date_format_changed(GtkWidget *, main_window *widgets);
+void yon_date_tooltip_update(main_window *widgets);
\ No newline at end of file
diff --git a/source/ubl-strings.h b/source/ubl-strings.h
index c029f59..63dd709 100644
--- a/source/ubl-strings.h
+++ b/source/ubl-strings.h
@@ -24,4 +24,8 @@
 #define LOCAL_TIME_LABEL _("Local time")
 
 #define DATE_FORMAT_SETTINGS_LABEL _("Date format:")
-#define DATE_DORMAT_TOOLTIP_LABEL _("Date\nformat")
\ No newline at end of file
+#define DATE_DORMAT_TOOLTIP_LABEL _("Date\nformat")
+
+#define YEAR_FORMAT_LABEL _("YYYY")
+#define MONTH_FORMAT_LABEL _("MM")
+#define DAY_FORMAT_LABEL _("DD")
\ No newline at end of file
diff --git a/ubl-settings-datetime.pot b/ubl-settings-datetime.pot
index 7d0efc4..075040f 100644
--- a/ubl-settings-datetime.pot
+++ b/ubl-settings-datetime.pot
@@ -37,6 +37,22 @@ msgstr ""
 msgid "Date format:"
 msgstr ""
 
+#: source/ubl-strings.h:6
+msgid "Date\nformat"
+msgstr ""
+
+#: source/ubl-strings.h:29
+msgid "YYYY"
+msgstr ""
+
+#: source/ubl-strings.h:30
+msgid "MM"
+msgstr ""
+
+#: source/ubl-strings.h:31
+msgid "DD"
+msgstr ""
+
 #: source/ubl-strings.h:7
 msgid "Accept"
 msgstr ""
diff --git a/ubl-settings-datetime_ru.po b/ubl-settings-datetime_ru.po
index 9e22de9..e752e53 100644
--- a/ubl-settings-datetime_ru.po
+++ b/ubl-settings-datetime_ru.po
@@ -37,6 +37,22 @@ msgstr "Пустое важное поле"
 msgid "Date format:"
 msgstr "Формат даты:"
 
+#: source/ubl-strings.h:6
+msgid "Date\nformat"
+msgstr "Дата\nформат"
+
+#: source/ubl-strings.h:29
+msgid "YYYY"
+msgstr "ГГГГ"
+
+#: source/ubl-strings.h:30
+msgid "MM"
+msgstr "ММ"
+
+#: source/ubl-strings.h:31
+msgid "DD"
+msgstr "ДД"
+
 #: source/ubl-strings.h:7
 msgid "Accept"
 msgstr "Принять"