I Don't Like How The Birthdays From Stardew Valley Are Set Up In The Real World. Like Most Of December

I don't like how the birthdays from stardew valley are set up in the real world. Like most of December is in the fall according to the solstice but Sebastian's birthday is winter 10 and we've decided it's December 10th.

Nah, let's give all the characters accurate birthdays in accordance with the seasons.

I'll set it up 2 ways:

1. Taking the earliest dates of each solstice and equinox that defines the seasons and dividing that by 28 (number of days in a stardew valley season) then multiplied that number by the NPC's bday (I'll explain the math later)

2. Taking the average amount of days in-between each IRL season and dividing that by 28

Earliest dates are as follows:

Spring March 19

Summer June 20

Autumn September 21

Winter December 20

The length of each season in this method is

91 days for spring

93 days for summer

90 days for fall

90 days for winter

The average days in between is 91.5 days.

Dividing by 28 we get

3.25 Spring

3.32142857 Summer

3.2142857 Autumn / Winter

3.267857142857143 Average

These numbers are the difference between our real world dates and stardew valley dates

Our season are about 90 days long, their's are 28 days so

1 day for stardew players is about 3 days for us.

Now that we have these numbers let's find out how each day correlates to each villager.

It will be in order of earliest birthday to latest and will follow this format

NPC-Season-ingame Bday-Bday(method 1)-Bday(method 2)

Kent- Spring 4- Apr 1

Lewis- Spring 7- Apr 10

Vincent- Spring 10- Apr 20

Haley- Spring 14- May 3

Pam- Spring 18- May 16

Shane- Spring 20- May 23

Pierre- Spring 26- Jun 11

Emily- Spring 27- Jun 14- Jun 15

Jas- Summer 4- Jul 3

Gus- Summer 8- Jul 16

Maru- Summer 10- Jul 23- Jul 22

Alex- Summer 13- Aug 2- Aug 1

Sam- Summer 17- Aug 15- Aug 14

Demetrius- Summer 19- Aug 22- Aug 21

Dwarf- Summer 22- Sep 1-Aug 30

Willy- Summer 24- Sep 7- Sep 6

Leo- Summer 26- Sep 14- Sep 12

Penny- Autumn 2- Sep 27

Elliott- Autumn 5- Oct 7

Jodi- Autumn 11- Oct 26

Abigail- Autumn 13- Nov 1- Nov 2

Sandy- Autumn 15- Nov 8- Nov 9

Marnie- Autumn 18- Nov 17- Nov 18

Robin- Autumn 21- Nov 27- Nov 28

George- Autumn 24- Dec 7- Dec 8

Krobus- Winter 1- Dec 23

Linus- Winter 3- Dec 29

Caroline- Winter 7- Jan 11

Sebastian- Winter 10- Jan 21

Harvey- Winter 14- Feb 2- Feb 3

Wizard- Winter 17- Feb 12- Feb 13

Evelyn- Winter 20- Feb 22- Feb 23

Leah- Winter 23- Mar 3- Mar 5

Clint- Winter 26- Mar 13- Mar 14

If there is only one date on the NPC that means both dates are the same

I'd like to thank @cloverbug83 for helping with the math.

TL:DR The dates in stardew valley are incorrect and I updated them according to IRL seasons.