Perth to Dublin
-7hPerth
AWSTSOURCEDublin
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
AWST and IST on the World Map
The map below highlights the AWST (Australian Western Standard Time) and IST (Greenwich Mean 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.
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
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.
Everything You Need to Know About Perth and Dublin Time
Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. Dublin runs on Irish Standard Time (IST) at UTC+01:00, also currently on daylight saving time. That puts Perth 7 hours behind Dublin — a difference of -7h at the current offsets.
In practice, when it is 9:00 AM in Perth it is 2:00 AM in Dublin. Midnight in Perth is 5:00 PM in Dublin.Dublin observes daylight saving time while Perth does not, so the gap narrows or widens by an hour part of the year.
Perth to Dublin time conversion table
| Perth (AWST) | Dublin (IST) | Day |
|---|---|---|
| 12:00 AM | 5:00 PM | previous day |
| 6:00 AM | 11:00 PM | previous day |
| 7:00 AM | 12:00 AM | same day |
| 8:00 AM | 1:00 AM | same day |
| 9:00 AM | 2:00 AM | same day |
| 12:00 PM | 5:00 AM | same day |
| 3:00 PM | 8:00 AM | same day |
| 5:00 PM | 10:00 AM | same day |
| 6:00 PM | 11:00 AM | same day |
| 9:00 PM | 2:00 PM | same day |
Why people convert Perth to Dublin time
- Scheduling a call from Perth to Dublin: a 10:00 AM start in Perth lands at 3:00 AM in Dublin, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Perth and Dublin are inside the 9-to-5 working day between 4:00 PM and 5:00 PM AWST time (9:00 AM–10:00 AM IST). That is roughly 1 hours of usable overlap.
- Booking travel or deliveries: tracking Dublin local time against Perth keeps pickup windows and arrival estimates honest across the -7h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM AWST" is unambiguous; "3 PM" across a -7h gap is not.
- Block 4:00 PM–5:00 PM AWST as the recurring meeting window if you work primarily from Perth and need Dublin colleagues present.
- Dublin: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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 GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
Best time to call between Perth and Dublin
Both Perth and Dublin sit inside the 9 AM – 5 PM working day between 4:00 PM–5:00 PM AWST, which is 9:00 AM–10:00 AM IST. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Perth and Dublin overlap for only 60 minutes (4:00 PM–5:00 PM AWST), so meetings have to be booked precisely.
Perth is 7 hours behind Dublin (AWST UTC+08:00 → IST UTC+01:00). The shared working window is 4:00 PM–5:00 PM AWST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Perth
Does not observe DST
Dublin
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 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 Dublin?
Perth (AWST, UTC+08:00) is 7 hours behind Dublin (IST, UTC+01:00). The gap is currently -7h.
How do I convert Perth time to Dublin time?
Add -7h to Perth local time. For example, 9:00 AM in Perth is 2:00 AM in Dublin.
What time is it in Dublin right now?
Dublin uses IST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -7h offset from Perth.
What is the best time to call Dublin from Perth?
Call between 4:00 PM and 5:00 PM AWST — that maps to 9:00 AM–10:00 AM IST and keeps both parties inside the working day.
Which is behind, Perth or Dublin?
Perth is 7 hours behind Dublin. When it is 12:00 PM in Perth it is 5:00 AM in Dublin.
Do Perth and Dublin use different time zones?
Perth (Australia) uses AWST at UTC+08:00, while Dublin (Ireland) uses IST at UTC+01:00. The IANA identifiers are Australia/Perth and Europe/Dublin.
Does daylight saving time affect the Perth–Dublin difference?
Yes at the moment: Dublin is on daylight saving time and Perth is not, so the -7h gap shifts by an hour when exactly one of them changes clocks.
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 Dublin?
Not normally. The -7h gap only pushes the date over the previous day.
What is the time difference between Perth and Dublin?
Dublin is -7h 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 Dublin in?
Dublin 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 GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
When is it midnight in Perth, what time is it in Dublin?
When it is 12:00 AM (midnight) in Perth (AWST), it is -7h later in Dublin (GMT).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Perth time conversions
- perth to sydney
- perth to melbourne
- perth to awst
- perth to new york
- perth to london
- perth to dubai
- perth to tokyo
- perth to singapore
- perth to los angeles
- perth to paris
- perth to delhi
- perth to mumbai
- perth to berlin
- perth to hong kong
- perth to toronto
- perth to kathmandu
- new york to perth
- london to perth
- dubai to perth
- tokyo to perth
- singapore to perth
- sydney to perth
- los angeles to perth
- paris to perth
- delhi to perth
- mumbai to perth
- berlin to perth
- hong kong to perth
- toronto to perth
- kathmandu to perth
See every conversion from Perth →·See every conversion from Dublin →