NTP Montreal date and time - need to turn this into a function in another script

Projects General Guidance
1

Montreal_Time_v6_OK_Final.ino (3,0 Ko)

Would like to turn this into a function that could be used in another script.

2

Hi,
Can you please post your code into a new post please?
To add code please click this link;

What controller model has it been written for?

Thanks.. Tom... :grinning: :+1: :coffee: :australia:

3

It seems you're using bloated code for a previous version of the ESP8266.
Most of the code you have comes already with the ESP8266WiFi.h library.
Have a look at this page.
Leo..

1 Like
4

Using ESP 12E

Here is code:

// Montreal_Time_v6_OK_Final.ino
// https://forum.arduino.cc/t/ntpclient-local-usa-eastcoast-time-solved/1028467/18
/* Daylight Saving Time in Montreal
Start DST:	Sunday 12 mars     2023 — 1 hour forward
End   DST:	Sunday 05 novembre 2023 — 1 hour backward
*/
//==============================================================
#ifndef STASSID
#define STASSID "MY_WIFI_SSID"     // set your SSID
#define STAPSK "MY_WIFI_PASSWORD"  // set your wifi password
#endif
//===============================================================
#define MY_NTP_SERVER "ca.pool.ntp.org"   /* Configuration of NTP */
#define MY_TZ "EST5EDT,M3.2.0,M11.1.0 I"  // Montreal daylight time included
//===============================================================
#include <ESP8266WiFi.h>  // we need wifi to get internet access //--------------- test ESP32
#include <time.h>         // for time() ctime()
// Globals ======================================================
time_t now;  // this are the seconds since Epoch (1970) - UTC
tm tm;
String Current_Month;
String Current_Day;
String Current_Hour;
String Current_Minute;
String Current_Seconds;
// Padding Month, day, hour, min, sec if less than 10 add 0 =====
void showTime() {
  time(&now);                // read the current time
  localtime_r(&now, &tm);    // update the structure tm with the current time
  if (tm.tm_mon + 1 < 10) {  // Month
    Current_Month = "0" + String(tm.tm_mon + 1);
  } else {
    Current_Month = String(tm.tm_mon + 1);
  }
  if (tm.tm_mday < 10) {  // Day
    Current_Day = "0" + String(tm.tm_mday);
  } else {
    Current_Day = String(tm.tm_mday);
  }
  if (tm.tm_hour < 10) {  // Hour:
    Current_Hour = "0" + String(tm.tm_hour);
  } else {
    Current_Hour = String(tm.tm_hour);
  }
  if (tm.tm_min < 10) {  // Minute:
    Current_Minute = "0" + String(tm.tm_min);
  } else {
    Current_Minute = String(tm.tm_min);
  }
  if (tm.tm_sec < 10) {  // Seconds:
    Current_Seconds = "0" + String(tm.tm_sec);
  } else {
    Current_Seconds = String(tm.tm_sec);
  }
  Serial.print("Formatted Date: ");
  Serial.println(String(tm.tm_year + 1900) + "-" + Current_Month + "-" + (Current_Day));
  Serial.println();
  Serial.print("Formatted Time: ");
  Serial.println((Current_Hour) + ":" + Current_Minute + ":" + (Current_Seconds));
  Serial.println();
}
//===============================================================
void setup() {
  Serial.begin(115200);
  Serial.println("\nNTP TZ DST - bare minimum");
  configTime(MY_TZ, MY_NTP_SERVER);  // --> Here is the IMPORTANT ONE LINER needed in your sketch!
  // start network
  WiFi.persistent(false);
  WiFi.mode(WIFI_STA);
  WiFi.begin(STASSID, STAPSK);
  while (WiFi.status() != WL_CONNECTED) {
    delay(200);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected");  // by default, the NTP will be started after 60 secs
}
//===============================================================
void loop() {
  showTime();
  delay(1000);  // dirty delay
}
5

what exactly are you meaning?
showTime() is already an example of a function for how to access the data elements of the structure.

6

Hi noiasca,
Does ShowTime retrieves actual date and time with Daylight Savings time for eastern US without usin RTC?

7

What I wanted is to have ")" padded in front of moths when the month is less than 10.
Format "YYYY-MM-DD" same for time as "HH;MM;SS" when those are less than 10.

8

i MEAN What I wanted is to have "0" padded

9

Is this what you want.
Leo..

#include <ESP8266WiFi.h>
time_t now;
tm tm;

void setup() {
  Serial.begin(115200);
  configTime("EST5EDT,M3.2.0,M11.1.0 I", "ca.pool.ntp.org");
  WiFi.mode(WIFI_STA);
  WiFi.begin("MY_WIFI_SSID", "MY_WIFI_PASSWORD"); // enter credentials here ........
  while (WiFi.status() != WL_CONNECTED) delay(200);
  Serial.println(F("\nConnected"));
}

void loop() {
  time(&now);
  localtime_r(&now, &tm);
  printf("%02u:%02u:%02u\n", tm.tm_hour, tm.tm_min, tm.tm_sec);
  delay(1000);
}
10

the code you posted does already a padding. What should be different?

11

Hi, this is great for time, How would I go for formatted date yyyy-mm-dd ?

12

Look at the printf options for formatting.
%02u means leading zero, 2 digits, unsigned int (could have used d for int).
The names of the time struct are in the NTP link I gave you.
Colons in between, and a newline \n at the end.
Leo..

13

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