in asynchroneous time I see more disadvantages than advantages...
if 7.00 RL is on the first day Night IG ant the second day Day IG and on the third one dusk, you will never be sure what IG time it is bevore you log in... so you might lucky to get in at the time you want may you are not.
Now for a example a 4 IG Day= 1 RL Day system.
4 IG Days = 1 RL day means 3 ours light 3 hours dark.
0.00 RL - 3.00 mean day IG
3.00 RL - 6.00 mean night IG
6.00 RL - 9.00 mean day IG
9.00 RL - 12.00 mean night IG
12.00 RL - 15.00 mean day IG
15.00 RL - 18.00 mean night IG
18.00 RL - 21.00 mean day IG
21.00 RL - 24.00 mean night IG
So you will always know at wich RL time it\'s Day ig... and if you don\'t want to stay ig for three hours you always know when to come back.
It\'s true such systems are not over original compared to an asynchroneous timeline, but for most peole it has simply some advantages.
It\'s easier if there once be a calender. Would be useful for the newspaper (wich is a very nice idea in my eyes)
it\'s more practical for meetings... if you want to meet someone at dawn for a duell it\'s quite hard to be there is the night is sometimes longer and sometimes shorter.

An other idea would be Lightcycles:
1RL day = 1 IG day BUT one ig day comprise 4 Lightcycles...
1 Lightcycle would be 3 hours night/ 3 hours day technically the same as above but more practical for calenders since you can count a dayRL as a dayIG.
A very interessting discussion to follow anyway

Some want 2 hours some want 12... quite a big gap... very intessting

- Nanaki