add more datetime formatters

Author: thijstriemstra

SystemClock/SystemClock.cpp

@@ -74,9 +74,21 @@ DateTime SystemClock::now() {
 
 String SystemClock::getTime() {
   DateTime dt = now();
-  return _clock->formatTime(dt);
+  return formatTime(dt);
 }
 
 String SystemClock::getStartupTime() {
-  return _clock->formatTime(startupTime);
+  return formatTime(startupTime);
+}
+
+String SystemClock::formatTime(DateTime dt) {
+    return _clock->formatTime(dt);
+}
+
+String SystemClock::formatDate(DateTime dt) {
+    return _clock->formatDate(dt);
+}
+
+String SystemClock::formatDateTime(DateTime dt) {
+    return _clock->formatDateTime(dt);
 }

SystemClock/SystemClock.h

@@ -28,15 +28,16 @@ class SystemClock
     DateTime now();
     String getTime();
     String getStartupTime();
+    String formatTime(DateTime dt);
+    String formatDate(DateTime dt);
+    String formatDateTime(DateTime dt);
     DateTime startupTime;
 
   private:
     char* _ntpServer;
     long _gmtOffset_sec;
     int _daylightOffset_sec;
     DS3231_RealtimeClock* _clock;
-
-    String formatTime(DateTime dt);
 };
 
 #endif