The most common used date and time is 1/3/09 18:15 UTC
There is a note in the genesis block that reads
"The Times 03/Jan/2009 Chancellor on brink of second bailout for banks", hence many people use London or some other location in the United Kingdom. The name on the white paper is Satoshi Nakamoto, so some people use Tokyo, or another Japanese location. It is widely believed that Satoshi Nakamoto is not the real name of the individual but there is no consensus on what that name means or symbolizes, if anything anything at all.
The actual time and date is also not 100% secure as there is a peculiar lag between Jan 3 and Jan 9 in the blockchain itself, from Bitcoin Wiki on the issue of timestamp, "Although the average time between Bitcoin blocks is 10 minutes, the timestamp of the next block is a full 6 days after the genesis block. One interpretation is that Satoshi was working on bitcoin for some time beforehand and the The Times front page prompted him to release it to the public. He then mined the genesis block with a timestamp in the past to match the headline. It is also possible that, since the block's hash is so low, he may have spent 6 days mining it with the same timestamp before proceeding to block 1. The prenet hypothosis suggests that the genesis block was solved on January 3, but the software was tested by Satoshi Nakamoto using that genesis block until January 9, when all the test blocks were deleted and the genesis block was reused for the main network."
So still more mystery involved, but Jan 3 - 9th can be reliably used as a genesis period for the slower moving planets and then work with the other notable events in bitcoin's existence to try and narrow it down. With the note in the block, UK is the immediately logical place to start for birth location.
Susan Gidel uses 1/3/09 18:15 UTC from Dublin. I noticed the transit worked quite well, for when Tesla invested in Bitcoin.
Another thought is that Ven and Ketu are in Sag which represents falls from a high place and Jupiter is defeated in planetary war