Hey, been looking around, can't seem to find a mod to make the days longer. Google brings me to either the Sims 3 mods or a pregnancy mod. Does anyone know of such a mod or busy making one?

You're in luck, IceM has created one such mod
http://modthesims.info/download.php?t=533026

Read the instruction carefully tho. I recommend changing the value to around 45 - 60 (you'll know when you've taken a look).

However currently the mod will break the vacation mechanism in Outdoor Retreat so take it out if you want to travel. (sigh I've been lurking at the mod thread to see if he/she has updated it but it's been so long )

Thanks alot! Oh and I see iceM has updated the mod for retreat