[est31]

According to this comment the camera faces westwards: https://news.ycombinator.com/item?id=25999725

The sun shines from the back towards the right so is more in the east. I'd put it somewhere around 10 to 12 AM local time (UTC+6.5).

https://www.suncalc.org/#/19.7758,96.1326,15/2021.01.31/11:4...

[est31]

Apparently the original post was done on 15:00 local time so that gives an upper bound: https://www.facebook.com/100005518668726/posts/1569283416598...