Setting the Time and Date
There are some constants defined in the beginning of the source code that can be edited to personal preference
For the Real time clock unit to function you need to uncomment and edit the line //setDS3231time(25,36,21,6,6,5,22); and within that line edit the seconds, minutes, hours, day, date, month, year the clock is 24 hour format and the days start from Monday being 1, Tuesday 2 etc.
Required Libs
editing the arduino source code requires downloading the SafeString library which can be found at https://www.forward.com.au/pfod/ArduinoProgramming/SafeString/index.html which i used for the millisDelay functions
The OLED used adafruit_SSD1306.h and the adafruit_GFX.h, the adafruit_SSD1306.h has dependency requirements that the arduino IDE should auto download