Jamieson, Fausset and Brown on Ecclesiastes 8:5

5. feel--experience.

time--the neglect of the right "times" causes much of the sinful folly of the spiritually unwise (Ec 3:1-11).

judgment--the right manner [Holden]. But as God's future "judgment" is connected with the "time for every purpose" in Ec 3:17, so it is here. The punishment of persisting sinners (Ec 8:3) suggests it. The wise man realizes the fact, that as there is a fit "time" for every purpose, so for the "judgment." This thought cheers him in adversity (Ec 7:14; 8:1).