I count a full seasonal year as 1 lived sim year. I play rotationally with aging turned off, but I turn aging ON for one day only every year, normally new year's eve. I will have sims aging up anytime during the year though, by throwing a birthday party or at least eating cake. And I won't freak out if I age them up 1 year early or late, according to my life stage plan:
Babies - 1 year long
Toddlers - 4 years long
Kids - 14 years
Teens - 14 years
YA - 21 years
A - 21 years
Elders - basically 17 years, starting at age 71, but this varies of course
I use a spreadsheet to keep track on who should age up when.
I love the feeling of time passing thanks to Seasons. :smile:
Edit: Should add that my seasons are set to 7 days only, full year 28 days. I try to get through 1 full year every RL month, sometimes I need twice as long.
