diff --git a/components/espchrono b/components/espchrono
index 4d2e930..1955671 160000
--- a/components/espchrono
+++ b/components/espchrono
@@ -1 +1 @@
-Subproject commit 4d2e9305dc8c434a7a5ddf5c534a3a896be04bee
+Subproject commit 1955671291aaac9a1d10ba29113c5018a187e36e
diff --git a/main/displays/menus/timesettingsmenu.cpp b/main/displays/menus/timesettingsmenu.cpp
index cdeddc2..c71dfe2 100644
--- a/main/displays/menus/timesettingsmenu.cpp
+++ b/main/displays/menus/timesettingsmenu.cpp
@@ -1,5 +1,7 @@
 #include "timesettingsmenu.h"
 
+#include "sdkconfig.h"
+
 // 3rdparty lib includes
 #include <espchrono.h>
 #include <fmt/core.h>
@@ -32,7 +34,11 @@ class CurrentLocalDateTimeText : public virtual espgui::TextInterface
 public:
     std::string text() const override
     {
+#ifdef CONFIG_ESPCHRONO_SUPPORT_DEFAULT_TIMEZONE
         return fmt::format("local: {}", espchrono::toString(espchrono::toDateTime(espchrono::local_clock::now())));
+#else
+        return "TODO";
+#endif
     }
 };
 
diff --git a/main/ledstrip.h b/main/ledstrip.h
index 925fcb7..5c79fd4 100644
--- a/main/ledstrip.h
+++ b/main/ledstrip.h
@@ -7,7 +7,6 @@
 #include <FastLED.h>
 
 #ifdef FEATURE_LEDSTRIP
-#define crgb_iterator __gnu_cxx::__normal_iterator<CRGB *, std::vector<CRGB>>
 enum Bobbycar_Side
 {
     FRONT_RIGHT,
diff --git a/main/time_bobbycar.cpp b/main/time_bobbycar.cpp
index 6ca19ed..f95c6a4 100644
--- a/main/time_bobbycar.cpp
+++ b/main/time_bobbycar.cpp
@@ -10,6 +10,22 @@
 // 3rdparty lib includes
 #include <espstrutils.h>
 
+// local includes
+#include "globals.h"
+
+espchrono::time_zone get_default_timezone() noexcept
+{
+    using namespace espchrono;
+    return time_zone{minutes32{settings.timeSettings.timezoneOffset}, settings.timeSettings.daylightSavingMode};
+}
+
+#ifdef CONFIG_ESPCHRONO_SUPPORT_DEFAULT_TIMEZONE
+espchrono::time_zone espchrono::get_default_timezone() noexcept
+{
+    return ::get_default_timezone();
+}
+#endif
+
 namespace {
 constexpr const char * const TAG = "BOBBYTIME";
 } // namespace
diff --git a/main/time_bobbycar.h b/main/time_bobbycar.h
index 25e50ba..2d9d88c 100644
--- a/main/time_bobbycar.h
+++ b/main/time_bobbycar.h
@@ -1,15 +1,11 @@
 #pragma once
 
+#include "sdkconfig.h"
+
 // 3rdparty lib includes
 #include <espchrono.h>
 
-// local includes
-#include "globals.h"
-
-auto espchrono::local_clock::timezone() noexcept -> time_zone
-{
-    return time_zone{minutes32{settings.timeSettings.timezoneOffset}, settings.timeSettings.daylightSavingMode};
-}
+espchrono::time_zone get_default_timezone() noexcept;
 
 #ifdef FEATURE_NTP
 void initTime();
diff --git a/sdkconfig_comred b/sdkconfig_comred
index 5476968..ef73e8e 100644
--- a/sdkconfig_comred
+++ b/sdkconfig_comred
@@ -180,6 +180,12 @@ CONFIG_LOG_LOCAL_LEVEL_ASYNC_HTTP_INFO=y
 CONFIG_LOG_LOCAL_LEVEL_ASYNC_HTTP=3
 # end of Simple Async HTTP Request
 
+#
+# espchrono Configuration
+#
+# CONFIG_ESPCHRONO_SUPPORT_DEFAULT_TIMEZONE is not set
+# end of espchrono Configuration
+
 #
 # ESP Config lib settings
 #
diff --git a/sdkconfig_feedc0de b/sdkconfig_feedc0de
index fd4fa2c..f1e0a01 100644
--- a/sdkconfig_feedc0de
+++ b/sdkconfig_feedc0de
@@ -180,6 +180,12 @@ CONFIG_LOG_LOCAL_LEVEL_ASYNC_HTTP_INFO=y
 CONFIG_LOG_LOCAL_LEVEL_ASYNC_HTTP=3
 # end of Simple Async HTTP Request
 
+#
+# espchrono Configuration
+#
+CONFIG_ESPCHRONO_SUPPORT_DEFAULT_TIMEZONE=y
+# end of espchrono Configuration
+
 #
 # ESP Config lib settings
 #
diff --git a/sdkconfig_mick b/sdkconfig_mick
index 8662ee9..e3cd162 100644
--- a/sdkconfig_mick
+++ b/sdkconfig_mick
@@ -180,6 +180,12 @@ CONFIG_LOG_LOCAL_LEVEL_ASYNC_HTTP_INFO=y
 CONFIG_LOG_LOCAL_LEVEL_ASYNC_HTTP=3
 # end of Simple Async HTTP Request
 
+#
+# espchrono Configuration
+#
+CONFIG_ESPCHRONO_SUPPORT_DEFAULT_TIMEZONE=y
+# end of espchrono Configuration
+
 #
 # ESP Config lib settings
 #
diff --git a/sdkconfig_peter b/sdkconfig_peter
index 5476968..de6a036 100644
--- a/sdkconfig_peter
+++ b/sdkconfig_peter
@@ -180,6 +180,12 @@ CONFIG_LOG_LOCAL_LEVEL_ASYNC_HTTP_INFO=y
 CONFIG_LOG_LOCAL_LEVEL_ASYNC_HTTP=3
 # end of Simple Async HTTP Request
 
+#
+# espchrono Configuration
+#
+CONFIG_ESPCHRONO_SUPPORT_DEFAULT_TIMEZONE=y
+# end of espchrono Configuration
+
 #
 # ESP Config lib settings
 #