diff --git a/examples/TimeRTCLog/TimeRTCLog.ino b/examples/TimeRTCLog/TimeRTCLog.ino
index 0b250c2..42fc3e4 100644
--- a/examples/TimeRTCLog/TimeRTCLog.ino
+++ b/examples/TimeRTCLog/TimeRTCLog.ino
@@ -1,24 +1,24 @@
 /*
- * TimeRTCLogger.pde
+ * TimeRTCLogger.ino
  * example code illustrating adding and subtracting Time.
- * 
+ *
  * this sketch logs pin state change events
- * the time of the event and time since the previous event is calculated and sent to the serial port. 
+ * the time of the event and time since the previous event is calculated and sent to the serial port.
  */
 
 #include <TimeLib.h>
 #include <Wire.h>
 #include <DS1307RTC.h>  // a basic DS1307 library that returns time as a time_t
 
-const int nbrInputPins  = 6;             // monitor 6 digital pins 
+const int nbrInputPins  = 6;             // monitor 6 digital pins
 const int inputPins[nbrInputPins] = {2,3,4,5,6,7};  // pins to monitor
 boolean state[nbrInputPins] ;            // the state of the monitored pins
 time_t  prevEventTime[nbrInputPins] ;    // the time of the previous event
 
 void setup()  {
   Serial.begin(9600);
-  setSyncProvider(RTC.get);   // the function to sync the time from the RTC  
-  for(int i=0; i < nbrInputPins; i++){
+  setSyncProvider(RTC.get);   // the function to sync the time from the RTC
+  for (int i=0; i < nbrInputPins; i++) {
      pinMode( inputPins[i], INPUT);
      // uncomment these lines if pull-up resistors are wanted
      // pinMode( inputPins[i], INPUT_PULLUP);
@@ -28,19 +28,18 @@ void setup()  {
 
 void loop()
 {
-   for(int i=0; i < nbrInputPins; i++)
-   {
-     boolean val = digitalRead(inputPins[i]); 
-     if(val != state[i])
-     {
+   for (int i=0; i < nbrInputPins; i++) {
+     boolean val = digitalRead(inputPins[i]);
+     if (val != state[i]) {
         time_t duration = 0; // the time since the previous event
         state[i] = val;
         time_t timeNow = now();
-        if(prevEventTime[i] > 0)  
+        if (prevEventTime[i] > 0) {
            // if this was not the first state change, calculate the time from the previous change
-           duration = duration = timeNow - prevEventTime[i];         
+           duration = timeNow - prevEventTime[i];
+        }
         logEvent(inputPins[i], val, timeNow, duration );  // log the event
-        prevEventTime[i] = timeNow;                       // store the time for this event  
+        prevEventTime[i] = timeNow;                       // store the time for this event
      }
    }
 }
@@ -49,13 +48,14 @@ void logEvent( int pin, boolean state, time_t timeNow, time_t duration)
 {
    Serial.print("Pin ");
    Serial.print(pin);
-   if( state == HIGH)
+   if (state == HIGH) {
       Serial.print(" went High at ");
-   else   
+   } else {
      Serial.print(" went  Low at ");
-   showTime(timeNow); 
-   if(duration > 0){
-     // only display duration if greater than 0  
+   }
+   showTime(timeNow);
+   if (duration > 0) {
+     // only display duration if greater than 0
      Serial.print(", Duration was ");
      showDuration(duration);
    }
@@ -63,8 +63,9 @@ void logEvent( int pin, boolean state, time_t timeNow, time_t duration)
 }
 
 
-void showTime(time_t t){
-  // display the given time 
+void showTime(time_t t)
+{
+  // display the given time
   Serial.print(hour(t));
   printDigits(minute(t));
   printDigits(second(t));
@@ -73,7 +74,7 @@ void showTime(time_t t){
   Serial.print(" ");
   Serial.print(month(t));
   Serial.print(" ");
-  Serial.print(year(t)); 
+  Serial.print(year(t));
 }
 
 void printDigits(int digits){
@@ -84,24 +85,25 @@ void printDigits(int digits){
   Serial.print(digits);
 }
 
-void showDuration(time_t duration){
-// prints the duration in days, hours, minutes and seconds
-  if(duration >= SECS_PER_DAY){
+void showDuration(time_t duration)
+{
+  // prints the duration in days, hours, minutes and seconds
+  if (duration >= SECS_PER_DAY) {
      Serial.print(duration / SECS_PER_DAY);
-     Serial.print(" day(s) "); 
-     duration = duration % SECS_PER_DAY;     
+     Serial.print(" day(s) ");
+     duration = duration % SECS_PER_DAY;
   }
-  if(duration >= SECS_PER_HOUR){
+  if (duration >= SECS_PER_HOUR) {
      Serial.print(duration / SECS_PER_HOUR);
-     Serial.print(" hour(s) "); 
-     duration = duration % SECS_PER_HOUR;     
+     Serial.print(" hour(s) ");
+     duration = duration % SECS_PER_HOUR;
   }
-  if(duration >= SECS_PER_MIN){
+  if (duration >= SECS_PER_MIN) {
      Serial.print(duration / SECS_PER_MIN);
-     Serial.print(" minute(s) "); 
-     duration = duration % SECS_PER_MIN;     
+     Serial.print(" minute(s) ");
+     duration = duration % SECS_PER_MIN;
   }
   Serial.print(duration);
-  Serial.print(" second(s) ");   
+  Serial.print(" second(s) ");
 }