Adelaide is 1 hour 30 minutes ahead of Perth during standard time, and 2 hours 30 minutes ahead during Adelaide's daylight saving period. When it's 12:00 PM in Adelaide, it's 10:30 AM in Perth (during ACST).
Adelaide uses ACST/ACDT (UTC+9:30/+10:30) and observes daylight saving time, while Perth uses AWST (UTC+8) year-round and does not observe DST. This creates a variable time difference throughout the year.
Optimal meeting window: 9:00 AM - 5:00 PM Adelaide time (7:30 AM - 3:30 PM Perth during standard time). The modest time difference allows for good overlap in business hours.
Perth is the most isolated major city in the world, and Adelaide is the closest Australian state capital, connected by flights of about 2.5 hours.