Shani Dev is worshiped on Saturday and Shani Dev is justice deity
It is said that worshiping Shani removes Shani dosha. Worshiping Shani Dev in the evening is more effective.
The effect and grace of Shani are more during evening or night, go to the Shani temple and offer mustard oil to Shani Dev.
To avoid the half-century, worship Shani Dev every evening on Saturday