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Time difference between Anchorage and Perth

Perth is 16 hours ahead of Anchorage

Anchorage, the United States is UTC−9 · Perth, Australia is UTC+8 — on standard time

The gap is not the same all year

Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because Anchorage goes forward on the second Sunday in March and back on the first Sunday in November and Perth does not change its clocks.

Anchorage / Perth clocksDifferenceHow long
summer / standard16 hours aheadabout 34 weeks — most of the year
standard / standard17 hours aheadabout 18 weeks

Perth stays put all year while Anchorage moves, so a meeting fixed in Perth's calendar shifts by an hour twice a year at Anchorage's end.

When they can both be at their desks

Nine-to-five in Anchorage and nine-to-five in Perth do not overlap at all. With 16 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.

Anchorage to Perth, hour by hour

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

On the usual gap of 16 hours.

Frequently asked questions

What is the time difference between Anchorage and Perth?

Perth is 16 hours ahead of Anchorage for most of the year. It is not the same all year — there is one other gap, because Anchorage goes forward on the second Sunday in March and back on the first Sunday in November and Perth does not change its clocks.

Is Perth ahead of Anchorage?

Yes — Perth is 16 hours ahead. Anchorage is UTC−9 and Perth is UTC+8 on standard time.

What time is 9 AM in Anchorage in Perth?

1:00 AM (next day), on the usual gap.

When can Anchorage and Perth meet?

Nine-to-five in Anchorage and nine-to-five in Perth do not overlap at all. One side has to take the call outside working hours, and with 16 hours between them it is worth deciding in advance which side that is.

Other pairs

Every Anchorage pair · Every Perth pair · All city pairs · Time zones by abbreviation