title: How to get timestamp when transaction is committed (or completed) in Hyperledger Fabric
body: <p>I need to calculate the difference between "the timestamp when transaction is submitted" and "the timestamp when transaction is committed". Is it possible to get the tx committed (or completed) timestamp in fabric?</p>
  
  <p>I tried to use Hyperledger Explorer running on my composer channel. I can see tx timestamp inside the block. But I am not sure whether it is creation or committing timestamp. Also, can I convert explorer timestamp to ISO 8601 format?</p>
  
  <p>Please help me on this.</p>