ChatGPT - doesn't understand basic Global Time Differences

I asked ChatGPT - if it is 7.35am in Paris what is the time in Brisbane Australia?

Paris, France, is in the Central European Time (CET) zone, which is UTC+1 during standard time. Brisbane, Australia, is in the Australian Eastern Standard Time (AEST) zone, which is UTC+10 during standard time.
The time difference between Paris and Brisbane is 9 hours (Paris is ahead of Brisbane).

If it is 7:35 AM in Paris, France, we can add 9 hours to determine the corresponding time in Brisbane, Australia.

7:35 AM + 9 hours = 4:35 PM

Wow! This is such a basic fundamental question and it has given a self-contradictory wrong answer.
Brisbane Australia is 9 hours ahead of Paris, so why does it say Paris is ahead?

I asked ChatGPT -

Convert 9:30am – 12pm Central time on 12/22 to PST

ChatGpt responded with the below info:

To convert the time from Central Time (CT) to Pacific Standard Time (PST), you need to account for the 2-hour time difference, as CT is 2 hours ahead of PST.

9:30 AM CT + 2 hours = 11:30 AM PST 12:00 PM CT + 2 hours = 2:00 PM PST

So, 9:30 AM to 12:00 PM Central Time on 12/22 would be equivalent to 11:30 AM to 2:00 PM Pacific Standard Time on the same day.

The conversation was wrong and was surprised that it gave this result. CST is not behind, rather it’s ahead of PST hours.