https://nitter.net/esa/status/1727760438887162020#m

The start time of today’s #Ariane6 core stage engine firing has been brought forward by 30 minutes. Coverage now starts at 20:40 CET (19:40 GMT, 16:40 local) esawebtv.esa.int

Engine ignition in your timezone: https://dateful.com/convert/utc?t=20&d=2023-11-23

Looks like they will also be live on YouTube.