Welcome to 2025! The Staff here at MTS wish everyone a great start to the year and thank you for your continued support!

1 Year As 1 Day Lifespan

SCREENSHOTS
Downloaded 5,721 times 56 Thanks 24 Favourited 13,803 Views
 Say Thanks!
This is a pack of mods that modify Sim or pet lifespan in order to reflect one real life year as one Sim day – under certain assumptions.

If you have one of the following pre-release mods, delete it before you install these mods:
  • simNopke-1yearAs1dayLifespan
  • simNopke-1yearAs1dayLifespan-growUpNextDay
After you have installed any lifespan mods, only newly created Sims/pets will be affected by it. Already existing Sims/pets will use the new lifespan settings once they have grown up.

You may use Smart Age Correct by Chris Hatch and Lazy Duchess to update the lifespans of existing Sims/pets to match them to newly installed lifespan mods.
Update (22 Mar 2023): Fixed grow up next day versions of the lifespan mods because they didn't always prevent newborn Sims or pets from growing up on the same day they were born.
18h Sim pregnancy mod
Makes Sim pregnancy last 18 hours in total – 6 hours for each trimester. Originally, it lasts 75 hours – 25 hours for each trimester.

If a Sim got pregnant before you have installed this mod, that pregnancy won't be affected.
4h pet pregnancy mod
Makes pet pregnancy last 4 hours. Originally, it lasts 48 to 60 hours.

If a pet got pregnant before you have installed this mod, that pregnancy won't be affected.
Lifespan mod – Sims
Assumptions:
  • Babies become toddlers when they're 1 year old,
  • Toddlers become children when they're 5 years old,
  • Children become teens when they're 13 years old,
  • Teens go to college when they're 20 years old,
  • College education lasts 4 years so young adults graduate when they're 24 years old,
  • Adults become elders when they're 55 years old
  • People live no more than 85 years.

Lifespan settings:
  • Baby: 1 day (3 days originally),
  • Toddler: 4 days (as originally),
  • Child: 8 days (as originally),
  • Teen: 7 days (15 days originally),
  • Adult: 31 days (29 days originally),
  • Elder (not plantsim): 10 to 20 days (11 to 21 days originally),
  • Elder (plantsim): 15 to 25 days (16 to 26 days originally).

Additionally, elders can have additional -2 to 10 days (as originally) depending on the aspiration level they had while growing up.

This mod does not modify college time. If you want to make it shorter, you may use Faster University Education by Dave Luv and Semester Changes by Cyjon.
You may be also interested in the 0 to 4 version of my College Dependent Adult Stage Days mod. It makes Sims who haven't graduated have their adult life stage longer.

There are 2 versions of this mod:
  • regular: if a baby is born before 6 PM*, it will grow up after 6 PM on the same day – so this life stage can last a few hours or even less,
  • grow up next day: if a baby is born before 6 PM*, it will grow up after 6 PM* next day – to make this life stage last longer.

* If you have a mod that changes this time, my mod will use it instead of 6 PM.

Use only one version at a time.
Pet lifespan mod – pets
Assumptions:
  • Puppies and kittens become adult dogs and cats when they're 1 year old,
  • Adult large dogs become elders when they're 8 to 9 years old,
  • Large dogs live 11 to 15 years,
  • Adult small dogs become elders when they're 10 to 11 years old,
  • Small dogs live 13 to 17 years,
  • Adult cats become elders when they're 10 to 11 years old,
  • Cats live 14 to 18 years.

Lifespan settings:
  • Puppy or kitten: 1 day (4 days originally),
  • Adult large dog: 7 to 8 days (22 days originally),
  • Elder large dog: 3 to 6 days (6 to 11 days originally)
  • Adult small dog: 9 to 10 days (26 days originally),
  • Elder small dog: 3 to 6 days (6 to 11 days originally),
  • Adult cat: 9 to 10 days (26 days originally),
  • Elder cat: 4 to 7 days (6 to 11 days originally).

There are 2 versions of this mod:
  • regular: if a puppy or kitten is born before 11 AM*, it will grow up after 6 PM on the same day – so this life stage can last a few hours or even less,
  • grow up next day: if a puppy or kitten is born before 11 AM*, it will grow up after 11 AM* next day – to make this life stage last longer.

* If you have a mod that changes this time (e.g. Pets Age With Sims), my mod will use it instead of 11 AM.

Use only one version at a time.
Conflicts
Conflicting modWay to resolveComment
any mod that changes the same area as my mod, e.g. Sim lifespan or pet pregnancy durationDon't use it with my mod.For example, you can use the 4h pet pregnancy mod with someone else's Sim lifespan mod, but not with another mod that changes pet pregnancy duration.

Overridden resources
Resource nameType nameObject/group nameTypeGroupInstance
simNopke-4hPetPregnancy
Global Pet TuningBehaviour ConstantGlobal0x42434F4E0x7FD46CD00x00000170
simNopke-18hSimPregnancy
Global TuningBehaviour ConstantGlobal0x42434F4E0x7FD46CD00x00000102
simNopke-LivsLifespan-pets and simNopke-LivsLifespan-pets-growUpNextDay
Tuning - Pet AgeBehaviour ConstantController - Age0x42434F4E0x7F07FBBC0x00001004
Sim - Create New Sim - Puppy/KittenController - PregnancyBehaviour Function0x424841560x7F1D0F490x00001031
simNopke-LivsLifespan-sims and simNopke-LivsLifespan-sims-growUpNextDay
TuningBehaviour ConstantController - Age0x42434F4E0x7F07FBBC0x00001000
Other TuningBehaviour ConstantController - Age0x42434F4E0x7F07FBBC0x00001001
Sim - Create New Sim - ChildBehaviour FunctionGlobal0x424841560x7FD46CD00x00000315
Sim - Create New Sim - GenericBehaviour FunctionGlobal0x424841560x7FD46CD00x00000348

Credits
Ciastko
jfade (The Compressorizer!)
Liv
Creators of SimPe
Creator Recommendations:
Faster University Education by Dave Luv
Semester Changes by Cyjon
Smart Age Correct by Chris Hatch and Lazy Duchess

Other Download Recommendations:
More downloads by Nopke: See more
Back to top