Offset
The time difference between Eastern Time and Perth is 12 hours.
Eastern Time (EDT) is behind Perth (AWST).
EDT: UTC-4
AWST: UTC+8
Eastern Time is currently observing daylight saving time; Perth is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Eastern Time and Perth don't overlap on the same weekday. Perth is 12 hours ahead of Eastern Time.
With some flexibility, there are two workable windows outside standard hours, depending on which side takes the early or late slot:
- 7 AM–8 AM in Eastern Time (7 PM–8 PM in Perth) — suggest 7:00 AM Eastern Time (7:00 PM Perth).
- 7 PM–8 PM in Eastern Time (7 AM–8 AM the next day in Perth) — suggest 7:00 PM Eastern Time (7:00 AM Perth).
Either is an early start or late finish for one side, but workable for a one-off meeting.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
Australia
- New Year's DayThu, Jan 1
- Australia DayMon, Jan 26
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
About these zones
Eastern Time is also known as EST, or EDT. To call United States, dial +1.
Perth uses Australian Western Time (AWST). To call Australia, dial +61.
Perth is approximately 11,600 miles northwest of Eastern Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| EST | Perth | Day |
|---|---|---|
| 12:00 am | 12:00 pm | Same day |
| 1:00 am | 1:00 pm | Same day |
| 2:00 am | 2:00 pm | Same day |
| 3:00 am | 3:00 pm | Same day |
| 4:00 am | 4:00 pm | Same day |
| 5:00 am | 5:00 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 |
| 10:00 am | 10:00 pm | Same day |
| 11:00 am | 11:00 pm | Same day |
| 12:00 pm | 12:00 am | +1 day |
| 1:00 pm | 1:00 am | +1 day |
| 2:00 pm | 2:00 am | +1 day |
| 3:00 pm | 3:00 am | +1 day |
| 4:00 pm | 4:00 am | +1 day |
| 5:00 pm | 5:00 am | +1 day |
| 6:00 pm | 6:00 am | +1 day |
| 7:00 pm | 7:00 am | +1 day |
| 8:00 pm | 8:00 am | +1 day |
| 9:00 pm | 9:00 am | +1 day |
| 10:00 pm | 10:00 am | +1 day |
| 11:00 pm | 11:00 am | +1 day |
Daylight saving time
Eastern Time observes daylight saving time; Perth does not. The offset between the two zones changes when Eastern Time transitions: on Sunday, November 1, 2026, clocks fall back from EDT to EST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:25 AM
- Sunset
- 8:27 PM
- Day length
- 15h 2m
- Sunrise
- 7:14 AM
- Sunset
- 5:20 PM
- Day length
- 10h 6m
Cities in these zones
Cities in Eastern Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern Time
- EWR
- HPN
- JFK
- LGA
- TEB
- ILG
- PHL
- TTN
- CLT
- USA
Airports in Australian Western Time
- PER
Related conversions
Common conversions
- What is 9:00 am EST in Perth?
- 9:00 am EST is 9:00 pm Perth.
- What is 12:00 pm EST in Perth?
- 12:00 pm EST is 12:00 am Perth, the next day.
- What is 12:30 pm EST in Perth?
- 12:30 pm EST is 12:30 am Perth, the next day.
- What is 2:00 pm EST in Perth?
- 2:00 pm EST is 2:00 am Perth, the next day.
- What is 5:00 pm EST in Perth?
- 5:00 pm EST is 5:00 am Perth, the next day.
- What is 11:30 pm EST in Perth?
- 11:30 pm EST is 11:30 am Perth, the next day.