Quote Originally Posted by liegeprime View Post
They have nights and day in Cybertron, thats how they based their computation for their time measurements,1 solar cycle - 1 day, but since the planet is massive and in a degraded orbit , the days and nights are much longer, hence the translation to earth hours for their hours is much more - don't have my vol#8 of DW MTMTE for G1 TFs here but its in there for those who have the comics - time measurement and earth equivalents.
Hrm... are you sure? I've got my MTME #8 in front of me and I only find reference to

1 breem = 8.3 Earth minutes = 1000 Astroseconds
1 vorn = 83 Earth years

In War Within #1, the story begins with daylight as we look onto Iacon. In hte Dark Ages, there appears to be sunlight b/c the sky is heavily orange when Springer and co. engage the Ultracons. But never really do we have an explicit reference to day and night on Cybertron.