1 will have a chance to advance to his first Australian Open championship match tonight when Carlos Alcaraz faces off with No. 1 Carlos Alcaraz vs. No. What time is the Alcaraz vs. Zverev semifinal match? The Australian Open semifinal between Carlos Alcaraz and Alexander Zverev is scheduled to begin tonight (Jan. 29) at 10:30 p.m. How to watch the Australian Open for freeIf you don’t have cable, you’ll need a live TV streaming service to stream the Australian Open for free.