File content as of revision 0:19a5ef7a79e8:

#include "mbed.h"
#include "EthernetNetIf.h"
#include "NTPClient.h"
#include "TextLCD.h"

EthernetNetIf ethif; //for DHCP
//EthernetNetIf ethif(IpAddr(xxx,xxx,xxx,xxx), IpAddr(xxx,xxx,xxx,xxx), IpAddr(xxx,xxx,xxx,xxx), IpAddr(xxx,xxx,xxx,xxx)); //for Static IP Address

NTPClient ntp;
TextLCD lcd(p24, p26, p27, p28, p29, p30);

int main() {
    char buffer[17];
    lcd.locate(0,1);
    lcd.printf("Start\n");
    lcd.locate(0,1);
    lcd.printf("Setting up...\n");
    EthernetErr ethErr = ethif.setup();
    if (ethErr) {
        lcd.locate(0,1);
        lcd.printf("Error %d in setup.\n", ethErr);
        return -1;
    }
    lcd.locate(0,1);
    lcd.printf("Setup OK\r\n");
    IpAddr ethIp=ethif.getIp();
    lcd.locate(0,1);
    lcd.printf("%d.%d.%d.%d", ethIp[0], ethIp[1], ethIp[2], ethIp[3]);
    wait(1.0f);

    time_t ctTime;

    Host server(IpAddr(), 123, "ntp.nict.jp"); //near ntp server
    ntp.setTime(server);
//UTC-->JST +9Hour(32400Sec)
    ctTime = time(NULL);
    ctTime+=32400;
    set_time(ctTime);

    lcd.cls();
    while (1) {
        lcd.locate(0,0);
        ctTime = time(NULL);
        lcd.locate(0,0);
        strftime(buffer,17,"%Y/%m/%d(%a)",localtime(&ctTime));
        lcd.printf("%s",buffer);
        lcd.locate(0,1);
        strftime(buffer,17,"%X",localtime(&ctTime));
        lcd.printf("%s",buffer);
        wait(1.0f);
    }
    return 0;
}