The Winter Solstice at Stonehenge is to be livestreamed starting at 0730 GMT (2330 Friday PST) here- https://www.youtube.com/watch?v=3zzIJivapL0
There is a whole page of information about attending- https://www.english-heritage.org.uk/visit/places/stonehenge/things-to-do/solstice/winter-solstice-2024/
The car park will be open from 0515 to 1100, but has limited capacity and traffic is expected to be heavy due to Christmas traffic.
Visitors are strongly advised to use the special bus service #333 run by Salisbury Reds from central Salisbury and Salisbury Railway Station via Amesbury (not the 0640) at 0530, 0600, 0620 and 0640 returning at 0915, 0930, 0945 and 1015
https://images-salisburyreds.passenger-website.com/downloads/Route%20333_Stonehenge%20Winter%20Solstice_web%20timetable_A4_1124%20v1_PRESS.pdf
The fares are higher than normal bus fares, but lower than the normal tour bus fares.
The normal scheduled bus #X2 (from Devizes) will also run to Salisbury afterwards at 0944.
Standard opening times that day only will start at 1230 although the Tour Bus is running from Salisbury as normal from 1000.