someone on my dash mentioned moon cycles when cora and peter talked about their and dereks age (cora said derek was 15 and peter said 17 when he met paige, right?), so I did a thing.
if we assume wolfs measure their age in moon cycles (28 days = 1 month), rather than in calendar years (~30,5 days = 1 month), a derek at the (human) age of 15 years and 6 months would be called “15” by standard, but in moon cycles he would already be 16 years and 10 months old, so basically peters “17” would be more or less accurate, too.
which would also answer Jeff’s cryptic “Derek is older than you think”: because at the human age of exactly 23 calendar years (for easier reference let’s say derek was exactly 16 calender years when the fire happened, S1 played 6 years after that and now it’s 2 half seasons / 1 year later, so 16+6+1=23) he was already 25 “moon cycle years” old (minus a few days), and at the human/calendar age of 23 years and 6 months he would be a little over 25 years and 6 months in moon cycles.
which makes our current derek about 2 years “older than we think” - but only in “wolf years”.
PS: yes, I’m bored.
ETA: assumed year = 12 months for human and wolf calculations.
if wolf years are measured in less than 12 months per year it would make all of them a lot more older, though.