This year, it is going to be celebrated on this Friday, May 22nd.
This is about the name of the day. In terms of the day itself, it still is the very same day that we celebrate Shani Jayanti, irrespective of if you follow northern or southern Indian traditions!
Lord Shani (Saturn) is supposed to have been born on the day of Shani Jayanti. He is the son of Lord Surya (Sun).
Shani Jayanti is the day to pay homage and respect the unfailing divine justice of the Law of Karma. Lord Shani is believed to be the executor of this divine justice. He gives us the fruits of our karmas- the good and the bad ones!
People who conduct spiritual past life regressions and do karmic clearing, will find this an extremely potent day to conduct karmic clearing sessions.
In general, Shani Jayanti is a great day to focus on the effects of our actions- to seek forgiveness for past misdeeds and to consciously choose that going forward, one will act in a manner that is in sync with the Laws of Dharma. We will choose to act in a way that will bring goodness and joy not just to one’s own self (and near & dear one) but also beneficial to the greater world around us.