You're very VERY unlikely to get any spousal support after only a 2 year marriage where there are no kids. Is it impossible?... no, but the duration of the marriage is one of the most important factors. Spousal support is more likely in a marriage lasting 15 or 20 years. While there's no set time limit, courts are more likely to tell spouses in a 2 year marriage to go support themselves.
There is not time limit, but duration of the marriage is a key factor as is difference in income. After two years, most courts won't consider spousal support unless there is a substantial reason - you quit a job and relocated for example - to grant such. If you are getting involved into a divorce after such a short term, you should focus more on the assets of the marriage and how those get divided versus wasting time on arguing for spousal support.
Sign up to receive a 10-part series of useful information and legal advice about the divorce process.