PST to Ireland
+9hPST
PSTSOURCEIreland
ISTGreen rows indicate typical business hours (9 AM - 5 PM)
PST and IST on the World Map
The map below highlights the PST (Pacific Standard Time) and IST (Greenwich Mean Time) timezone regions across the globe.
PST – Pacific Standard Time
UTC-08:00Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.
- •Silicon Valley and the world's biggest tech companies operate on Pacific Time.
- •The Hollywood film industry runs on PST/PDT.
- •PST is 3 hours behind EST, creating a significant business hours gap.
- •Vancouver, Canada's third-largest city, uses PST.
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.
PST vs Ireland: Offsets, DST and Best Call Times
PST runs on Pacific Standard Time (PST) at UTC-08:00. Ireland runs on Irish Standard Time (IST) at UTC+01:00, also currently on daylight saving time. That puts PST 9 hours ahead of Ireland — a difference of +9h at the current offsets.
In practice, when it is 9:00 AM in PST it is 6:00 PM in Ireland. Midnight in PST is 9:00 AM in Ireland.Ireland observes daylight saving time while PST does not, so the gap narrows or widens by an hour part of the year.
PST to Ireland time conversion table
| PST (PST) | Ireland (IST) | Day |
|---|---|---|
| 12:00 AM | 9:00 AM | same day |
| 6:00 AM | 3:00 PM | same day |
| 7:00 AM | 4:00 PM | same day |
| 8:00 AM | 5:00 PM | same day |
| 9:00 AM | 6:00 PM | same day |
| 12:00 PM | 9:00 PM | same day |
| 3:00 PM | 12:00 AM | next day |
| 5:00 PM | 2:00 AM | next day |
| 6:00 PM | 3:00 AM | next day |
| 9:00 PM | 6:00 AM | next day |
Why people convert PST to Ireland time
- Scheduling a call from PST to Ireland: a 10:00 AM start in PST lands at 7:00 PM in Ireland, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +9h gap: PST and Ireland 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 Ireland is 6:00 PM in PST.
- Watching a live event or market open: PST viewers need 6:00 PM in Ireland to catch a 9:00 AM start there, and 3:00 PM if the event is anchored to PST.
- Always state the zone abbreviation, not just the hour. "3:00 PM PST" is unambiguous; "3 PM" across a +9h gap is not.
- With a +9h gap there is no shared 9-to-5 window, so alternate the early start: one week PST takes the early slot, the next week Ireland does.
- Ireland: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
About PST (Pacific Standard Time)
Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.
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 PST and Ireland
With a +9h offset there is no overlap inside a normal 9 AM – 5 PM day. Ireland opens at 9:00 AM IST, which is 6:00 PM in PST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
PST and Ireland have no shared working hours because of the +9h gap. Teams need to alternate early starts or rely on asynchronous handovers.
PST is 9 hours ahead of Ireland (PST UTC-08:00 → IST UTC+01:00). 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
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Ireland
☀ 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 PST and Ireland?
PST (PST, UTC-08:00) is 9 hours ahead of Ireland (IST, UTC+01:00). The gap is currently +9h.
How do I convert PST time to Ireland time?
Add +9h to PST local time. For example, 9:00 AM in PST is 6:00 PM in Ireland.
What time is it in Ireland right now?
Ireland 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 +9h offset from PST.
What is the best time to call Ireland from PST?
There is no shared working-hours window because of the +9h gap. The closest option is 1:00 PM in PST, which is 10:00 PM in Ireland.
Which is ahead, PST or Ireland?
PST is 9 hours ahead of Ireland. When it is 12:00 PM in PST it is 9:00 PM in Ireland.
Do PST and Ireland use different time zones?
PST uses PST at UTC-08:00, while Ireland (Ireland) uses IST at UTC+01:00. The IANA identifiers are America/Los_Angeles and Europe/Dublin.
Does daylight saving time affect the PST–Ireland difference?
Yes at the moment: Ireland is on daylight saving time and PST is not, so the +9h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share PST's time zone?
PST also covers Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento and 2 more.
Which countries use PST, PST's zone?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Is there a day difference between PST and Ireland?
Not normally. The +9h gap only pushes the date over for late-evening times.
What is the time difference between PST and Ireland?
Ireland is +9h from PST.
What timezone is PST in?
PST operates on its local timezone.
What timezone is Ireland in?
Ireland operates on its local timezone.
Which countries use PST (Pacific Standard Time)?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Does PST observe daylight saving time?
Yes, PST switches to PDT during summer months.
What are some interesting facts about PST?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
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 PST, what time is it in Ireland?
When it is 12:00 AM (midnight) in PST (PST), it is +9h later in Ireland (GMT).
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