UTC to AWST Time Converter
AWST is 8 hours ahead of UTC. UTC is the zero point, UTC±00:00, and AWST is UTC+8:00.
Best Time to Call Between UTC and AWST
Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 2:00 PM UTC, which is 3:00 PM to 10:00 PM AWST.
both at work UTC only AWST only neither — hours along the strip are UTC.
Common Times Converted
UTC on the left, AWST on the right.
UTC to AWST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| UTC | AWST | Working hours |
|---|---|---|
| 12:00 AM | 8:00 AM | — |
| 1:00 AM | 9:00 AM | AWST only |
| 2:00 AM | 10:00 AM | AWST only |
| 3:00 AM | 11:00 AM | AWST only |
| 4:00 AM | 12:00 PM | AWST only |
| 5:00 AM | 1:00 PM | AWST only |
| 6:00 AM | 2:00 PM | AWST only |
| 7:00 AM | 3:00 PM | AWST only |
| 8:00 AM | 4:00 PM | AWST only |
| 9:00 AM | 5:00 PM | UTC only |
| 10:00 AM | 6:00 PM | UTC only |
| 11:00 AM | 7:00 PM | UTC only |
| 12:00 PM | 8:00 PM | UTC only |
| 1:00 PM | 9:00 PM | UTC only |
| 2:00 PM | 10:00 PM | UTC only |
| 3:00 PM | 11:00 PM | UTC only |
| 4:00 PM | 12:00 AM next day | UTC only |
| 5:00 PM | 1:00 AM next day | — |
| 6:00 PM | 2:00 AM next day | — |
| 7:00 PM | 3:00 AM next day | — |
| 8:00 PM | 4:00 AM next day | — |
| 9:00 PM | 5:00 AM next day | — |
| 10:00 PM | 6:00 AM next day | — |
| 11:00 PM | 7:00 AM next day | — |
What UTC and AWST Actually Are
UTC — Coordinated Universal Time
The global reference standard. Aviation, computing and science run on it. Standing at UTC as written, and the region does not change its clocks, so that offset holds all year.
UTC is not a place. It is a computed standard, kept within a second of mean solar time at Greenwich by atomic clocks, and it is the reference every other zone is defined against.
AWST — Australian Western Standard Time
Perth. Standing at UTC+8:00 as written, and the region does not change its clocks, so that offset holds all year. Western Australia does not observe daylight saving, so Perth stays on UTC+8 all year.
Western Australia has held four referendums on daylight saving and rejected it every time, most recently in 2009.
What This Means in Practice
The date changes mid-working-day
For 1 of the eight hours in a normal UTC working day, the equivalent AWST time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.
A gap you can rely on
Neither region changes its clocks, so this difference holds every day of the year. A recurring meeting booked once stays correct — worth knowing, because most cross-border pairs cannot say that.
Frequently Asked Questions
What is the time difference between UTC and AWST?
AWST is 8 hours ahead of UTC.
What is 9:00 AM UTC in AWST?
9:00 AM UTC is 5:00 PM AWST.
What are the best hours to schedule a call between UTC and AWST?
Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 7:00 AM to 2:00 PM UTC, which is 3:00 PM to 10:00 PM AWST.
Does the difference between UTC and AWST change during the year?
No. Neither region changes its clocks, so this gap is fixed all year round.
Does AWST always mean Australian Western Standard Time?
Western Australia does not observe daylight saving, so Perth stays on UTC+8 all year.