EDT to Perth
+12hEDT
EDTSOURCEPerth
AWSTGreen rows indicate typical business hours (9 AM - 5 PM)
EDT and AWST on the World Map
The map below highlights the EDT (Eastern Daylight Time) and AWST (Australian Western Standard Time) timezone regions across the globe.
EDT – Eastern Daylight Time
UTC-04:00Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.
- •EDT is observed from the second Sunday of March to the first Sunday of November.
- •During EDT, the US East Coast is only 4 hours behind London (instead of 5).
- •Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.
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.
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.
Time Conversion Guide: EDT to Perth
EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. That puts EDT 12 hours ahead of Perth — a difference of +12h at the current offsets.
In practice, when it is 9:00 AM in EDT it is 9:00 PM in Perth. Midnight in EDT is 12:00 PM in Perth. Neither zone observes daylight saving time, so the offset between them stays constant all year.
EDT to Perth time conversion table
| EDT (EDT) | Perth (AWST) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | same day |
| 6:00 AM | 6:00 PM | same day |
| 7:00 AM | 7:00 PM | same day |
| 8:00 AM | 8:00 PM | same day |
| 9:00 AM | 9:00 PM | same day |
| 12:00 PM | 12:00 AM | next day |
| 3:00 PM | 3:00 AM | next day |
| 5:00 PM | 5:00 AM | next day |
| 6:00 PM | 6:00 AM | next day |
| 9:00 PM | 9:00 AM | next day |
Why people convert EDT to Perth time
- Scheduling a call from EDT to Perth: a 10:00 AM start in EDT lands at 10:00 PM in Perth, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +12h gap: EDT and Perth 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 Perth is 9:00 PM in EDT.
- Watching a live event or market open: EDT viewers need 9:00 PM in Perth to catch a 9:00 AM start there, and 12:00 PM if the event is anchored to EDT.
- Always state the zone abbreviation, not just the hour. "3:00 PM EDT" is unambiguous; "3 PM" across a +12h gap is not.
- With a +12h gap there is no shared 9-to-5 window, so alternate the early start: one week EDT takes the early slot, the next week Perth does.
About EDT (Eastern Daylight Time)
Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.
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.
Best time to call between EDT and Perth
With a +12h offset there is no overlap inside a normal 9 AM – 5 PM day. Perth opens at 9:00 AM AWST, which is 9:00 PM in EDT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
EDT and Perth have no shared working hours because of the +12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
EDT is 12 hours ahead of Perth (EDT UTC-04:00 → AWST UTC+08:00). 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
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
Perth
Does not observe DST
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 EDT and Perth?
EDT (EDT, UTC-04:00) is 12 hours ahead of Perth (AWST, UTC+08:00). The gap is currently +12h.
How do I convert EDT time to Perth time?
Add +12h to EDT local time. For example, 9:00 AM in EDT is 9:00 PM in Perth.
What time is it in Perth right now?
Perth uses AWST at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +12h offset from EDT.
What is the best time to call Perth from EDT?
There is no shared working-hours window because of the +12h gap. The closest option is 1:00 PM in EDT, which is 1:00 AM in Perth.
Which is ahead, EDT or Perth?
EDT is 12 hours ahead of Perth. When it is 12:00 PM in EDT it is 12:00 AM in Perth.
Do EDT and Perth use different time zones?
EDT uses EDT at UTC-04:00, while Perth (Australia) uses AWST at UTC+08:00. The IANA identifiers are America/New_York and Australia/Perth.
Does daylight saving time affect the EDT–Perth difference?
Neither zone observes daylight saving time, so the +12h offset between EDT and Perth is fixed all year.
Which other cities share EDT's time zone?
EDT also covers New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
Which countries use EDT, EDT's zone?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Bahamas, Haiti, Turks and Caicos.
Is there a day difference between EDT and Perth?
Sometimes. The +12h gap is large enough that 8:00 PM or later in EDT already falls on the next day in Perth.
What is the time difference between EDT and Perth?
Perth is +12h from EDT.
What timezone is EDT in?
EDT operates on its local timezone.
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 are the business hours in Perth?
Standard business hours in Perth are 9:00 AM - 5:00 PM AWST.
Which countries use EDT (Eastern Daylight Time)?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Bahamas, Haiti, Turks and Caicos.
Does EDT observe daylight saving time?
Yes, EDT switches to EST during summer months.
What are some interesting facts about EDT?
EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).
Which cities are in the AWST timezone?
Major cities in the AWST timezone include Perth, Mandurah, Bunbury, Geraldton.
What is the UTC offset for AWST?
Australian Western Standard Time (AWST) is at UTC+08:00.
What should I know about the AWST timezone?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
When is it midnight in EDT, what time is it in Perth?
When it is 12:00 AM (midnight) in EDT (EDT), it is +12h later in Perth (AWST).
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