How to calculate the CD time of the magic weapon of seeking immortality and controlling sword

There are two algorithms to find the magic weapon CD time: 1. Use CDR (Cooling Reduction) to calculate. CDR refers to the percentage of skill cooldown shortened through skills and equipment. If the CD of the skill is 60 seconds and the CDR of the skill is 20%, the actual CD of the skill is 60 seconds *( 1-20%)=48 seconds. 2. Use CD (cooling time) calculation. CD refers to the actual cooldown time of a skill, regardless of any acceleration or delay. If the CD of a skill is 60 seconds, the player needs to wait 60 seconds before using the skill again. It should be noted that different games may have slightly different definitions and calculation methods for CD and CDR.