diff --git a/ampel-firmware/config.public.h b/ampel-firmware/config.public.h
index 4b7432159dfa1ea1e924b29ef3d3551b5106f7f7..dcd50eeadea3e62a42a28c76b2bd2870e1af9069 100644
--- a/ampel-firmware/config.public.h
+++ b/ampel-firmware/config.public.h
@@ -20,8 +20,9 @@
  * WIFI
  */
 
-#  define WIFI_SSID     "MY_SSID"
-#  define WIFI_PASSWORD "P4SSW0RD"
+// SSID and PASSWORD need to be defined, but can be empty.
+#  define WIFI_SSID     ""
+#  define WIFI_PASSWORD ""
 #  define WIFI_TIMEOUT  30 // [s]
 
 /**
@@ -150,6 +151,7 @@
  */
 
 #  define NTP_SERVER "pool.ntp.org"
-#  define UTC_OFFSET_IN_SECONDS 7200 // [s] 3600 for UTC+1, 7200 for UTC+1 and daylight saving time
+#  define UTC_OFFSET 1 // [h] +1 for Paris/Berlin, -5 for NYC
+#  define DAYLIGHT_SAVING_TIME false // true in summer, false in winter
 
 #endif
diff --git a/ampel-firmware/web_config.cpp b/ampel-firmware/web_config.cpp
index 2ce6a1ecdced8abdbd20c99c220d87fe0fe16d4f..853cf7df426512f83749d15aacc234533abab177 100644
--- a/ampel-firmware/web_config.cpp
+++ b/ampel-firmware/web_config.cpp
@@ -136,9 +136,9 @@ namespace web_config {
   TextTParameter<STRING_LEN> ntpServerParam =
       Builder<TextTParameter<STRING_LEN>>("ntp_server").label("NTP Server").defaultValue(NTP_SERVER).build();
   IntTParameter<int16_t> timeOffsetParam = Builder<IntTParameter<int16_t>>("timezone").label("Timezone").defaultValue(
-      (UTC_OFFSET_IN_SECONDS) / 3600).min(-23).max(23).step(1).placeholder("[h]").build();
-  CheckboxTParameter dstParam =
-      Builder<CheckboxTParameter>("dst").label("Daylight Saving Time?").defaultValue(false).build();
+      UTC_OFFSET).min(-23).max(23).step(1).placeholder("[h]").build();
+  CheckboxTParameter dstParam = Builder<CheckboxTParameter>("dst").label("Daylight Saving Time?").defaultValue(
+      DAYLIGHT_SAVING_TIME).build();
 
   /**
    * LoRaWAN