I remember Holly entered to stage 3 in spring 26. So her birthday is 26 winter!
You can open your savefile and look for
<daysOld>
. (From one, scroll up until you find the name of the child to know who it is). It's a tag unique to children, so it should appear only twice tops. That tags tells you how many days the child has existed in your world.
Furthermore, there's another tag
<daysPlayed>
(appearing twice, for some reason) that tells you how many in-game days you player.
So, you do
daysPlayed-daysOld+1
(the
+1
is important. Let's say they were born on the 10th, and you're checking on the 15th. The game will tell you they're 6 days old (they lived 10th, 11th, 12th, 13th, 14th and 15th, 6 days), and 15-6=9 which would erroneously tell you they were born the 9th).
Once you get the number, start dividing. First by 112 (28*4, or four full seasons, a full year), which will give you the years completed (add
+1
to get the running year they were born); then, you get the remainder and divide that by 28 (full seasons), which will give you the seasons completed (add
+1
to get the running season they were born); and lastly, the remainder will be the day of the season they were born.
My examples: I played 520 days, which means I'm currently on 16th of Fall, year 5. My kids, Anne and Ben, have respectively 322 and 224. This means they were born (520-322+1=199) days and (520-224+1=297) days after starting the game.
Code:
(199 / 112) + 1 = year 2
199 Mod 112 = 87 days remaining
(87 / 28) + 1 = 3rd season, meaning Fall
87 Mod 28 = 3 days remaining, so the 3rd
(297 / 112) + 1 = year 3
297 Mod 112 = 73 days remaining
(73 / 28) + 1 = 3rd season, meaning Fall
73 Mod 28 = 17 days remaining, so the 17th
So, Anne was born 3th Fall, year 2 while Ben was born 17th Fall, year 3.
If you want to know your wedding date, that's even easier: just search
<WeddingDate>
(I would guess there's one per spouse you've ever had. In that case just scroll up until you see the name of the spouse).
Bear in mind the final date the game registers seems to be the one it would have been had there not been a festival that day moving the wedding to the next day. For example, I have as WeddingDate Spring 24th of year 2, when I know it moved to 25th because it would land on the Spring Dance festival.
(Fun fact, that was deliberate. It looked like a good day to get married, having a dance on every anniversary. But, the wedding was moved the 25th... the day Pam goes to the clinic. I wanted to have a dance as wedding anniversary and ended up having my mother-in-law's medical checkup as my wedding anniversary. Oh, the irony...)