Add Dynamic Timestamp to image pin IPFS Cluster

Hello looking for dynamically assign a timestamp to my pinned user nfts.
I was thinking of adding 10000 icons ahead of time to my ipfs cluster. Since I would
CID ahead of time and allocate the metadata after. I only need a timestamp of the date added to the CID upon a certain user action. (Adding the nft to there profile.)

This doesn’t feel like the most efficient method of going about this and I am looking for ideas.