Time zone · Americas
PAT
Punta Arenas Time
Punta Arenas Time (PAT) is a fixed, year-round UTC−03:00 timezone used in Chile's far south, home to Punta Arenas and the gateway to Patagonia—a region where the sun lingers late in summer and winter days feel short and dramatic. With no daylight saving changes, life here follows a steady rhythm, making it easy to plan across seasons without clock shifts.
Sunday, May 31, 2026
Current offset
UTC-03:00
Standard · -03
Daylight saving
Not observed
Year-round standard time
IANA zones
1
None observe daylight saving
DST offset
—
No summer variant
About PAT
A fixed, year-round offset.
Punta Arenas Time (PAT) is a fixed, year-round UTC−03:00 timezone used in Chile's far south, home to Punta Arenas and the gateway to Patagonia—a region where the sun lingers late in summer and winter days feel short and dramatic. With no daylight saving changes, life here follows a steady rhythm, making it easy to plan across seasons without clock shifts.
IANA zones · the technical identifiers
The zone that resolve to PAT.
For software, always store the IANA identifier — never the abbreviation alone. The database keeps these zones distinct because their rules can, and historically did, diverge.
Where PAT is used
One country.
Same offset · UTC-03:00
Other zones at UTC-03:00 right now.
These named zones share PAT's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about PAT, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- Why doesn’t Punta Arenas observe daylight saving time?
- Chile abolished daylight saving time in 2015, and Punta Arenas has remained on permanent UTC−03:00 since then, simplifying timekeeping in this remote southern region.
- What’s unique about living in the PAT timezone?
- Punta Arenas is one of the southernmost cities in the world, where summer days can last over 17 hours and winter days shrink to just 7—yet the clock never changes.
- Is PAT the same as other Chilean timezones?
- No—mainland Chile uses UTC−04:00 (with DST in some areas), but Punta Arenas and nearby regions permanently use UTC−03:00, creating a one-hour difference within the same country.
- How does PAT affect travel or communication with Santiago?
- When mainland Chile observes DST (UTC−03:00), it aligns with Punta Arenas; otherwise, Santiago is one hour behind, so travelers must check seasonal offsets.
- Are there any other places that use UTC−03:00 year-round like PAT?
- Very few—most UTC−03:00 zones observe DST. Punta Arenas is notable for its stable offset, unlike Argentina or Brazil, which shift clocks seasonally.
- What’s the historical reason for this timezone?
- Chile standardized Punta Arenas to UTC−03:00 in 2015 after ending DST nationwide, aiming to reduce confusion in its geographically extreme southern territories.
- Does the lack of DST benefit residents?
- Yes—consistent scheduling helps coordinate logistics, tourism, and daily life in a region already challenged by harsh weather and isolation.
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