Boot camp

So I know I should know this but everyone's been telling me different things. My fiancé leaves for boot camp soon and told me it would roughly be 5-6 months. I figured he would know since he is the one joining and all but the my friend who's husband is already out of boot camp said it was only 4 months. I'm just needing to figure out which one it is. Thank y'all in advance 😇

Sorry 😅 Branch: Marines