Perth to NST
-11h 30mPerth
AWSTSOURCENST
NSTGreen rows indicate typical business hours (9 AM - 5 PM)
AWST and NST on the World Map
The map below highlights the AWST (Australian Western Standard Time) and NST (Newfoundland Standard Time) timezone regions across the globe.
AWST – Australian Western Standard Time
UTC+08:00Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.
- •Western Australia does not observe daylight saving time.
- •Perth is the most isolated major city in the world.
- •AWST is the same offset as China Standard Time and Singapore Time.
NST – Newfoundland Standard Time
UTC-03:30Newfoundland Standard Time (NST) is a unique half-hour offset time zone in Canada, 3.5 hours behind UTC.
- •NST is one of only a few half-hour offset time zones in the world.
- •Newfoundland joined Canada in 1949 and kept its unique time zone.
- •St. John's is the easternmost city in North America.
About Perth
WikipediaPerth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.
Western Australia does not observe daylight saving time.
Understanding the -11h 30m Gap: Perth vs NST
Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. NST runs on Newfoundland Standard Time (NST) at UTC-03:30. That puts Perth 11 hours 30 minutes behind NST — a difference of -11h 30m at the current offsets.
In practice, when it is 9:00 AM in Perth it is 9:30 PM in NST on the previous day. Midnight in Perth is 12:30 PM in NST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Perth to NST time conversion table
| Perth (AWST) | NST (NST) | Day |
|---|---|---|
| 12:00 AM | 12:30 PM | previous day |
| 6:00 AM | 6:30 PM | previous day |
| 7:00 AM | 7:30 PM | previous day |
| 8:00 AM | 8:30 PM | previous day |
| 9:00 AM | 9:30 PM | previous day |
| 12:00 PM | 12:30 AM | same day |
| 3:00 PM | 3:30 AM | same day |
| 5:00 PM | 5:30 AM | same day |
| 6:00 PM | 6:30 AM | same day |
| 9:00 PM | 9:30 AM | same day |
Why people convert Perth to NST time
- Scheduling a call from Perth to NST: a 10:00 AM start in Perth lands at 10:30 PM in NST the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h 30m gap: Perth and NST have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in NST is 9:30 PM in Perth.
- Keeping family and friends in sync: knowing that 8:00 PM in Perth is 8:30 AM in NST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM AWST" is unambiguous; "3 PM" across a -11h 30m gap is not.
- With a -11h 30m gap there is no shared 9-to-5 window, so alternate the early start: one week Perth takes the early slot, the next week NST does.
About AWST (Australian Western Standard Time)
Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.
About NST (Newfoundland Standard Time)
Newfoundland Standard Time (NST) is one of the few half-hour offset time zones in the world. It covers the island of Newfoundland in Canada and is 30 minutes ahead of Atlantic Standard Time. This unique offset exists because Newfoundland was an independent country until 1949.
Best time to call between Perth and NST
With a -11h 30m offset there is no overlap inside a normal 9 AM – 5 PM day. NST opens at 9:00 AM NST, which is 9:30 PM in Perth, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Perth and NST have no shared working hours because of the -11h 30m gap. Teams need to alternate early starts or rely on asynchronous handovers.
Perth is 11 hours 30 minutes behind NST (AWST UTC+08:00 → NST UTC-03:30). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Perth
Does not observe DST
NST
☀ Currently in DST
Standard: UTC-03:30 · DST: UTC-02:30
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Perth and NST?
Perth (AWST, UTC+08:00) is 11 hours 30 minutes behind NST (NST, UTC-03:30). The gap is currently -11h 30m.
How do I convert Perth time to NST time?
Add -11h 30m to Perth local time. For example, 9:00 AM in Perth is 9:30 PM in NST (previous day).
What time is it in NST right now?
NST uses NST at UTC-03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -11h 30m offset from Perth.
What is the best time to call NST from Perth?
There is no shared working-hours window because of the -11h 30m gap. The closest option is 1:00 PM in Perth, which is 1:30 AM in NST.
Which is behind, Perth or NST?
Perth is 11 hours 30 minutes behind NST. When it is 12:00 PM in Perth it is 12:30 AM in NST.
Do Perth and NST use different time zones?
Perth (Australia) uses AWST at UTC+08:00, while NST uses NST at UTC-03:30. The IANA identifiers are Australia/Perth and America/St_Johns.
Does daylight saving time affect the Perth–NST difference?
Neither zone observes daylight saving time, so the -11h 30m offset between Perth and NST is fixed all year.
Which other cities share Perth's time zone?
AWST also covers Perth, Mandurah, Bunbury, Geraldton.
Which countries use AWST, Perth's zone?
AWST is used in Australia (Western Australia).
Is there a day difference between Perth and NST?
Not normally. The -11h 30m gap only pushes the date over the previous day.
What is the time difference between Perth and NST?
NST is -11h 30m from Perth.
What timezone is Perth in?
Perth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.
What timezone is NST in?
NST operates on its local timezone.
What are the business hours in Perth?
Standard business hours in Perth are 9:00 AM - 5:00 PM AWST.
Which countries use AWST (Australian Western Standard Time)?
AWST is used in Australia (Western Australia).
Does AWST observe daylight saving time?
No, AWST does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about AWST?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
Which cities are in the NST timezone?
Major cities in the NST timezone include St. John's, Corner Brook, Mount Pearl.
What is the UTC offset for NST?
Newfoundland Standard Time (NST) is at UTC-03:30. During daylight saving time, it shifts to NDT.
What should I know about the NST timezone?
NST is one of only a few half-hour offset time zones in the world. Newfoundland joined Canada in 1949 and kept its unique time zone.
When is it midnight in Perth, what time is it in NST?
When it is 12:00 AM (midnight) in Perth (AWST), it is -11h 30m later in NST (NST).
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