first commit

libraries/RTCLib_by_NeiroN/examples/rtc_format/rtc_format.ino

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+// DateTime format utility example
+
+#include <Wire.h>
+#include <RTClib.h>
+
+DS1307 rtc;
+//DS1302 rtc; // see ds1302 example for pin configuration
+//DS3231 rtc;
+//PCF8563 rtc;
+//PCF8583 rtc;
+//RTC_Millis rtc;
+
+void setup() {
+  Serial.begin(9600);
+  Wire.begin();
+  rtc.begin();
+  if (!rtc.isrunning()) {
+    Serial.println("RTC is NOT running!");
+    // following line sets the RTC to the date & time this sketch was compiled
+    rtc.adjust(DateTime(__DATE__, __TIME__));
+  }
+}
+
+void loop() {
+  DateTime now = rtc.now();
+  char buf[100];
+  strncpy(buf, "YYYY.MM.DD hh:mm:ss", 100);
+  Serial.println(now.format(buf));
+  delay(1000);
+}