I took that into account. I keep track of these things.

The flashback with Amy and Ryan in “The Case of the Forked Road” was explicitly “six years earlier”. Those flashback strips are actually interleaved with strips from the Scary Go Round story “Chilton Takes Charge”. Lottie was 13 during “Forked Road”, so she would have been 7 when she was introduced in SGR six years earlier, shortly after “Chilton Takes Charge” (both of which were during the fall/winter, so Lottie’s birthday doesn’t come into play), and she would have turned 8 during the summer between then and Sarah and Esther going off to uni at the end of SGR/beginning of Giant Days.

And this agrees with what I said before: There’s a three-year timeskip between the end of SGR and the beginning of Bad Machinery, into which Giant Days fits.

So, again, Lottie’s 19 now. She was 8 at the beginning of Giant Days. 11 years ago (plus a couple months, because it’s early November now).

But again, when Claire says Esther was here ten years ago, her off-the-cuff estimate isn’t wrong, because Giant Days lasted more than just the one year.