diff --git a/src/utility/time/RTCMillis.cpp b/src/utility/time/RTCMillis.cpp
index d7debd26..7ceb2743 100644
--- a/src/utility/time/RTCMillis.cpp
+++ b/src/utility/time/RTCMillis.cpp
@@ -21,7 +21,7 @@
 
 #include "AIoTC_Config.h"
 
-#if defined(HAS_NOTECARD) || defined(ARDUINO_ARCH_ESP8266)
+#if defined(HAS_NOTECARD) || defined(ARDUINO_ARCH_ESP8266) || defined (ARDUINO_RASPBERRY_PI_PICO_W)
 
 #include <Arduino.h>
 #include "RTCMillis.h"
@@ -61,4 +61,4 @@ unsigned long RTCMillis::get()
   return _last_rtc_update_value;
 }
 
-#endif /* HAS_NOTECARD || ARDUINO_ARCH_ESP8266 */
+#endif /* HAS_NOTECARD || ARDUINO_ARCH_ESP8266 || ARDUINO_RASPBERRY_PI_PICO_W */
diff --git a/src/utility/time/RTCMillis.h b/src/utility/time/RTCMillis.h
index ab35b953..03d35294 100644
--- a/src/utility/time/RTCMillis.h
+++ b/src/utility/time/RTCMillis.h
@@ -18,7 +18,7 @@
 #ifndef ARDUINO_IOT_CLOUD_RTC_MILLIS_H_
 #define ARDUINO_IOT_CLOUD_RTC_MILLIS_H_
 
-#if defined(HAS_NOTECARD) || defined(ARDUINO_ARCH_ESP8266)
+#if defined(HAS_NOTECARD) || defined(ARDUINO_ARCH_ESP8266) || defined (ARDUINO_RASPBERRY_PI_PICO_W)
 
 /**************************************************************************************
  * INCLUDE
@@ -45,6 +45,6 @@ class RTCMillis
 
 };
 
-#endif /* HAS_NOTECARD || ARDUINO_ARCH_ESP8266 */
+#endif /* HAS_NOTECARD || ARDUINO_ARCH_ESP8266 || ARDUINO_RASPBERRY_PI_PICO_W */
 
 #endif /* ARDUINO_IOT_CLOUD_RTC_MILLIS_H_ */
diff --git a/src/utility/time/TimeService.cpp b/src/utility/time/TimeService.cpp
index 1801c298..fb7272fc 100644
--- a/src/utility/time/TimeService.cpp
+++ b/src/utility/time/TimeService.cpp
@@ -27,7 +27,7 @@
 #include "NTPUtils.h"
 #include "TimeService.h"
 
-#if defined(HAS_NOTECARD) || defined(ARDUINO_ARCH_ESP8266)
+#if defined(HAS_NOTECARD) || defined(ARDUINO_ARCH_ESP8266) || defined (ARDUINO_RASPBERRY_PI_PICO_W)
   #include "RTCMillis.h"
 #elif defined(ARDUINO_ARCH_SAMD)
   #include <RTCZero.h>
@@ -41,7 +41,7 @@
  * GLOBAL VARIABLES
  **************************************************************************************/
 
-#if defined(HAS_NOTECARD) || defined(ARDUINO_ARCH_ESP8266)
+#if defined(HAS_NOTECARD) || defined(ARDUINO_ARCH_ESP8266) || defined (ARDUINO_RASPBERRY_PI_PICO_W)
 RTCMillis rtc;
 #elif defined(ARDUINO_ARCH_SAMD)
 RTCZero rtc;
@@ -89,6 +89,12 @@ void renesas_setRTC(unsigned long time);
 unsigned long renesas_getRTC();
 #endif
 
+#ifdef ARDUINO_RASPBERRY_PI_PICO_W
+void pico_w_initRTC();
+void pico_w_setRTC(unsigned long time);
+unsigned long pico_w_getRTC();
+#endif
+
 #endif /* HAS_NOTECARD */
 
 /**************************************************************************************
@@ -356,6 +362,7 @@ void TimeServiceClass::initRTC()
 #elif defined (ARDUINO_ARCH_RENESAS)
   renesas_initRTC();
 #elif defined (ARDUINO_RASPBERRY_PI_PICO_W)
+  pico_w_initRTC();
 #else
   #error "RTC not available for this architecture"
 #endif
@@ -376,6 +383,7 @@ void TimeServiceClass::setRTC(unsigned long time)
 #elif defined (ARDUINO_ARCH_RENESAS)
   renesas_setRTC(time);
 #elif defined (ARDUINO_RASPBERRY_PI_PICO_W)
+  pico_w_setRTC(time);
 #else
   #error "RTC not available for this architecture"
 #endif
@@ -396,7 +404,7 @@ unsigned long TimeServiceClass::getRTC()
 #elif defined (ARDUINO_ARCH_RENESAS)
   return renesas_getRTC();
 #elif defined (ARDUINO_RASPBERRY_PI_PICO_W)
-  return 1;
+  return pico_w_getRTC();
 #else
   #error "RTC not available for this architecture"
 #endif
@@ -548,6 +556,23 @@ unsigned long renesas_getRTC()
 }
 #endif
 
+#ifdef ARDUINO_RASPBERRY_PI_PICO_W
+void pico_w_initRTC()
+{
+  rtc.begin();
+}
+
+void pico_w_setRTC(unsigned long time)
+{
+  rtc.set(time);
+}
+
+unsigned long pico_w_getRTC()
+{
+  return rtc.get();
+}
+#endif
+
 #endif /* HAS_NOTECARD */
 
 /******************************************************************************