If you want to gain strong combat effectiveness in the light encounter, you can only obtain some powerful equipment and other methods through your own operations. If you want to know the location of the red stone fragments in Light Encounter on March 12th, and use Light Encounter to improve your combat effectiveness and make yourself stronger, then follow the editor of Sourcecode.com and take a look at this guide. I believe it can Give you the answer.
3.12 Location of the falling fragments of the Eye of Eden
Map : Forbidden Pavilion
Type: Cooling Shard
Specific location: Starlight Desert
Falling time : About 08 minutes and 40 seconds to 50 minutes at 9, 14, and 19 hours
Cleaning method : Just purify the dark plants around the black stone fragments
Obtain currency : candlelight [normal candle/white candle]
Note: The [Dawn Season] seasonal mission cannot be completed at this falling point.