Cue me not be productive for the rest of the day
A while back while reading through I charted out days given in each book, taking detailed notes in efforts to draw out the calendar of Animorphs. In was a cluster***. While they try to do most there stuff of weekends, they often have to work around school, sometimes delay things weeks at a time, and there where various points where they either had things crammed back to back, or oddly uneventful. Add in the fact that the war was all of 3 years, some books no specific days of the week came up, and slights like books where they are in school 6 days in a row, and the refuse to acknowledge the passing from middle school to high school or summer breaks, the time between each book varies considerably. Eventually I'll up load what I worked out, somewhere someday, but for now, here's a breakdown of how I spaced the Animorphs books. Nothing official of course, but I'd wage there's not many better
1 ends on a Tuesday Morning,
2 Starts on a Sunday, I presume the next sunday
3 also on a Sunday, about a week after 2 ends
4 again, about one week after 3
5 I believe starts just a day later, though this is a few days after they rescue Ax
6 a bit less than a week after 5
7 just a few days after 6
8 is about 2 weeks after the kandrona in 7 is destroyed-remember MM1 is b/w 7 & 8
9 4 days after 8
10 a week later
11 is guess, not enough details, but I came up with about 5 days after 10
12 again 5 days after the previous
13 6 days later
14 just 2 days later
15 just after 14 wraps
16 about 4 days later
17 a lot of fluff at the end of 16 confuses things, I ultimately concluded this one begins some 3.5 weeks after 16, but it could be less.
18 about a month after 7 based on math in the series, but I doubt it's that extreme.
19 A full 2 months laters, but again this was to fit the series into 3 years. Could be more or less
20 I believe this was about a few days after Cassie found Karen free
21 Right after 20
22 Right after 21
23 Just under 3 weeks later
24 Again about 3 weeks
25 Totally guessing, but about 3 weeks later
26 I really got into the 3 week thing
27 2 weeks later. Much better
28 Great, now 3.5 weeks
29 close to 4 weeks
30 more 3.5
31 About 2 weeks
32 Spot on 3 again
33 Just 2 days later. That can't be right
34 Just under 3 weeks after
35 And 3.5 Theme- Now a note here this book was filled with fluff, after the Yeerk fighting, we had 2 weeks later till the wedding, and then comes the call that kicks off Visser a few days later, so the actual contents of this book cover about a month.
36 And this takes place a full month after Visser (& therefore 35) end
37 About a week and a half. Much better
38 And 3.5
39 Well this was 2.5 weeks
40 This 3.5 is starting to bug me
41 A full month and a week. Now MM4 falls b/w them, but still, that's a hell of a spacing
42 This was a full month later too.
43 3.5 weeks
44 3 weeks even
45 Just shy of a month later. This book covers a bit more than battles such that
46 Same day 45 ends
47 A week and half after averting WWIII
48 A week and half after that
49 Maybe a week, give or take a few days
50 Some 4 or 5 days after 49 ends.
51 I forced this to be 4 days after 50, but I have my suspicions on that, it's probably less
52 Again, fitted to be about 3 days later
53 The next day if not the day 52 ends.
54 Right were 53 stops.
TL;DR Using nerd logic, most the early books have a space of about a week in between them story wise, some more some less. In the middle we started spacing it out to about a month, and by then end we were in a crunch for a few days or less between every story.