No. It would be way too much to take.

You can get awakened in one day, you can get self-realized in one day (in fact, there’s no other way to self-realize - it either happened or it didn’t), but you cannot reach Nirvana in one day. It would be so much to take, your heart would explode out of love.

You would have to experience all your emotional pain and suffering, without exception, in one day, and all the love and beauty that is the mirror side of the suffering that exists in you. There’s no way. It would be truly insane. I’m not sure your body would be able to physically take it. No historical sage or master reached Nirvana in one day. It usually takes 6-10, sometimes 15 years to reach authentic Nirvana after self-realization, and most self-realized people never do. I did it faster, but it was a little bit more than intense. There were months when all I could do was sitting on my sofa, I just couldn’t do anything else, it was so intense. I cried every day for more than a year. The pain was intense, but bliss was sometimes so intense, I could barely move. There’s a lot to take, really a lot. Most people just cease all practice after self-realization, and if the initial insight was deep enough, they shed the remainder of their ego naturally over the subsequent years, if they’re lucky and don’t get into teaching too quickly. True masochists like myself and Osho do nothing else until it’s more or less complete.

Most people who claim to have reached Nirvana have no clue, they are non-duality dilettantes. They have entered non-duality, jumped into the beyond, but they’re still to fly all the way through it and pop out on “the other shore” as Gautama put it. So they naturally think identifying with Existence/Consciousness/Awareness is Nirvana. No, authentic non-abiding Nirvana of a Buddha lies beyond both Existence and non-Existence, it is total and ultimate surrender, beyond life and death, all is one. Nirvana is when nothing is left of you, no internal world, no psychology, no Being, no non-Being, just your body and the clouds, the most ordinary, mundane life. No divinity, no consciousness even, no clinging to remain as consciousness/awareness after death either. It is accepting both the ultimate finality of death and the ultimate beauty of life, because one can’t exist without the other, one gives birth to the other.

I thought I reached Nirvana too after my self-realization. So naive I was.