Generally speaking, you can apply for a visa to go abroad for a few months at most.

It depends on which country you are going to and the type of visa. Take South Korea as an example. Short-term visas such as tourist visas usually take five working days, but according to my experience, I want to remind you that after five working days, next week will be 1. If there is a legal holiday in the middle, it should be considered. Don't delay. For other visas, it takes a long time to apply for the license number of the visa method because they have to go through layers of examination. Usually 1-2 months. If it is immigration or something, it will take six months to two years. I hope my answer is helpful to you.