Blockchain.info shows the block's timestamp in the transaction information:
Okay thank you got it, but what about the 831 minutes ?
831 minutes is the time between when blockchain.info first saw the transaction and when it was added to a block.
https://blockchain.info/tx/46c8dbcc825f3ebe1f060198160d12a0006dcdd5466ce6389ef24825b3144aee
and on blockexplorer with the time of ( mined Nov 6, 2017 3:16:25 AM )
https://blockexplorer.com/tx/46c8dbcc825f3ebe1f060198160d12a0006dcdd5466ce6389ef24825b3144aee
I think that blockexplorer.com uses your local time, because the time it shows me for that block is 5:16:25 PM.