A arduino based word clock

Using a arduino I will route 4 HEF4094 IC chips to 4 ULN2003A. The ULN2003A will attach to strings on LEDs with the longest single string of LEDs being 7, which is QUARTER. Based on the time read of the RTC by the arduino the code will sequence which strings to light up, with one string lighting up randomly and another string lighting up once every October on my girlfriends birthday. Currently every single LED is attached to a 220ohms resistor. The IT IS LEDs will be attached to power as they're always on.