Toolman

Time difference between Buenos Aires and Perth

Perth is 11 hours ahead of Buenos Aires

Buenos Aires, Argentina is UTC−3 · Perth, Australia is UTC+8 — on standard time

The gap holds all year

Neither city changes its clocks — Buenos Aires does not change its clocks and Perth does not change its clocks — so 11 hours is the difference in January and in July alike. That is worth knowing about this pair specifically, because most international pairs do move and a recurring meeting between them does not need checking twice a year.

When they can both be at their desks

Nine-to-five in Buenos Aires and nine-to-five in Perth do not overlap at all. With 11 hours between them, one side is always outside working hours, and the practical question is which side takes the early start or the late finish rather than when to meet.

Buenos Aires to Perth, hour by hour

Buenos AiresPerth
12:00 AM11:00 AM
1:00 AM12:00 PM
2:00 AM1:00 PM
3:00 AM2:00 PM
4:00 AM3:00 PM
5:00 AM4:00 PM
6:00 AM5:00 PM
7:00 AM6:00 PM
8:00 AM7:00 PM
9:00 AM8:00 PM
10:00 AM9:00 PM
11:00 AM10:00 PM
12:00 PM11:00 PM
1:00 PM12:00 AM (next day)
2:00 PM1:00 AM (next day)
3:00 PM2:00 AM (next day)
4:00 PM3:00 AM (next day)
5:00 PM4:00 AM (next day)
6:00 PM5:00 AM (next day)
7:00 PM6:00 AM (next day)
8:00 PM7:00 AM (next day)
9:00 PM8:00 AM (next day)
10:00 PM9:00 AM (next day)
11:00 PM10:00 AM (next day)

On the usual gap of 11 hours.

Frequently asked questions

What is the time difference between Buenos Aires and Perth?

Perth is 11 hours ahead of Buenos Aires for most of the year. The gap never changes: Buenos Aires does not change its clocks and Perth does not change its clocks.

Is Perth ahead of Buenos Aires?

Yes — Perth is 11 hours ahead. Buenos Aires is UTC−3 and Perth is UTC+8 on standard time.

What time is 9 AM in Buenos Aires in Perth?

8:00 PM, on the usual gap.

When can Buenos Aires and Perth meet?

Nine-to-five in Buenos Aires and nine-to-five in Perth do not overlap at all. One side has to take the call outside working hours, and with 11 hours between them it is worth deciding in advance which side that is.

Other pairs

Every Buenos Aires pair · Every Perth pair · All city pairs · Time zones by abbreviation