scripting help 737 clock/chrono

[smartarze]

Would it be possible for someone to help me with xplane chrono/clock scripting? I have my max7219 connected to my arduino mega on my test rig (seperate from my sim build) but struggling with the scripting to make the clock and chrono work. I would like to have the clock in zulu time on the first 4 digits and the chrono in hours and minutes on the second 4 digits. Any help much appreciated, I have done some scripting before but this is my first using 7 segment displays so feel a little lost.