RAVENBORN LEBLANC/UNDERWORLD WUKONG WHERe

i heard from someone that it will be released tomorrow, do any of you know when skins are usually enabled? like in the middle of the day or overnight. i know patches are overnight but idk if it is like that for something just like skins. i kinda wanna know so because someone is gifting me ravenborn leblanc but they only have time in the morning before work and they will not be back for a while, so i was wondering if they are able to buy it in the morning before they leave, or if itll be released during day.