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It took me a while of searching about and working this out, I am a newbie to Pi and PHP, hope this helps someone, but I have managed to get the EmonGLCD showing the time from the RFM12Pi

firstly change the code on the emonGLCD....find the void loop () section and change it to this:-

void loop()
{
 
  if (rf12_recvDone())
  {
    if (rf12_crc == 0 && (rf12_hdr & RF12_HDR_CTL) == 0)  // and no rf errors
    {
      int node_id = (rf12_hdr & 0x1F);
      if (node_id == 11) {emontx = *(PayloadTX*) rf12_data; last_emontx = millis();}
     
      if (node_id == 15)
     
     
      {
digitalWrite(greenLED, HIGH);  // flash the LED to indicate the time is updated
while( rf12_data[0] > 23) // fixes the hour when returned from emoncms,
{  // which returns GMT which results in a negative
rf12_data[0] += 24;  // number from 1800 to midnight in US CTZ
}  // which the rtc can’t understand.

RTC.adjust(DateTime(2013, 2, 25, rf12_data[0], rf12_data[2], rf12_data[3]));
last_emonbase = millis();
delay(25);
digitalWrite(greenLED, LOW);
}

Then you need to alter the raspberrypi_run.php file.....you need to stop it running first (it runs all the time)

on the pi

sudo nano /etc/crontab

find the line with the raspberrypi_run.php file and add a # at the front so

* * * * * root cd /var/www/emoncms/Modules/raspberrypi && php raspberrypi_run.php  

becomes

#* * * * * root cd /var/www/emoncms/Modules/raspberrypi && php raspberrypi_run.php

then Do the CTRL-X,Y,[ENTER] thing to save the file.....

easiest to reboot then unless you are ok finding and killing the php process....

so...

sudo reboot

when it has rebooted it will not be running the raspberrypi_run.php file......

next you need to edit the file:-

cd /var/www/emoncms/Modules/raspberrypi

sudo nano raspberrypi_run.php

look for the line that says:-

if (time()-$remotetimer>30 && $sent_to_remote == true)

and just above it add the following text:-

if (time()-$todtimer>300)
{
$todtimer = time();

$glcdhour = date('H');
$glcdmin = date('i');

$glcdtime = $glcdhour . ",00," . $glcdmin . ",00,s";
fprintf($f, $glcdtime);
sleep(1);

}

This will send the time every 300secs and flash the lights on the emonGLCD.....

save this file, then run:-

sudo nano /etc/crontab

and remove the # you added earlier, then reboot again.

sudo reboot

job done hopefully