Is marijuana an antidepressant

Well yes and no, about 5 or 6 hours after smoking weed, it makes you spacey and happy, and its just as good when you smoke a little bit and it make you not stoned or completely high, but just happy for a while. The only thing i don't like is after when you may crash a bit and feel more depressed. But if you go to bed stoned it makes you feel good when you wake up. But mostly weed just makes time go by faster.