#include <RTClib.h>
RTC_DS1307 rtc;

int h, m, s = 0;
DateTime current;

void setup() {
  Serial.begin(9600);
  if (!rtc.begin()) {
    Serial.println("RTC Not Initialised");
    while(true);
  }
}

void loop() {
  current = rtc.now();
  h = current.hour();
  m = current.minute();
  s = current.second();
  
  inTime();
  usTime();
  frTime();
  Serial.println("*******");

  delay(1000);
}

void inTime() {
  String time = "IN Time:- " + String(h) + ":" + String(m) + ":" + String(s);
  Serial.println(time);
}

void usTime() {
  int usH = h-11;
  int usM = m-30;
  if (usH < 0) usH = 24 + usH;
  if (usM < 0) usM = 60 + usM;
  String time = "US Time:- " + String(usH) + ":" + String(usM) + ":" + String(s);
  Serial.println(time);
}

void frTime() {
  int frH = h-30;
  int frM = m-30;
  if (frH < 0) frH = 24 + frH;
  if (frM < 0) frM = 60 + frM;
  String time = "FR Time:- " + String(frH) + ":" + String(frM) + ":" + String(s);
  Serial.println(time);
}