Time zone · Asia

ETT

East Timor Time

East Timor Time (ETT) sets the clock in Timor-Leste to a consistent +09:00, matching the rhythm of business and life across neighboring countries in the region without any daylight saving shifts.

UTC+09:00 standard1 IANA zone1 city
Current time in ETT☀ Daylight
12:28:05

Sunday, May 31, 2026

06:4512:3518:25
Standard
+09 · +9
IANA zones
1

Current offset

UTC+09:00

Standard · +09

Daylight saving

Not observed

Year-round standard time

IANA zones

1

None observe daylight saving

DST offset

—

No summer variant

About ETT

A fixed, year-round offset.

East Timor Time (ETT) sets the clock in Timor-Leste to a consistent +09:00, matching the rhythm of business and life across neighboring countries in the region without any daylight saving shifts.

IANA zones · the technical identifiers

The zone that resolve to ETT.

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.

IANA zonePrimary cityDST
Asia/DiliDili— None

Cities currently on ETT

The same hour, city by city.

1 city · all UTC+09:00

Dili
12:28
12:28:06 · +09
 ETT year-round

Where ETT is used

One country.

Timor-Leste
ETT · UTC+09:00

Same offset · UTC+09:00

Other zones at UTC+09:00 right now.

These named zones share ETT's offset today. When daylight saving rules differ, they drift apart for part of the year.

WITUTC+9
--:--
Eastern Indonesia Time
Asia— No DST
Indonesia
JSTUTC+9
--:--
Japan Standard Time
Asia— No DST
Japan
KSTUTC+9
--:--
Korean Standard Time
Asia— No DST
North KoreaSouth Korea
PALAUTUTC+9
--:--
Palau Time
Oceania— No DST
Palau
YSTUTC+9
--:--
Yakutsk Standard Time
Europe— No DST
Russia

Frequently asked questions

Common questions about ETT, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].

What does 'ETT' stand for?
ETT stands for East Timor Time, used officially in Timor-Leste.
Which countries or territories use East Timor Time?
Primarily, only Timor-Leste uses ETT through the Asia/Dili timezone.
Is East Timor the same as neighboring Indonesian time?
No. While some parts of eastern Indonesia may align with +09:00, ETT is specific to Timor-Leste and doesn’t observe daylight saving.
Can I rely on Timor-Leste staying at UTC+9 permanently?
Yes. Since there are no daylight saving policies in place, ETT will remain constant at UTC+09:00 year-round.
How does ETT compare with other ASEAN countries?
Timor-Leste sits between Singapore, Manila, Jakarta; having one stable-no-DST zone can ease scheduling with nearby countries that frequently adjust for daylight saving.

Free · Developer API

Time, as JSON.

Every IANA time zone with live offsets, DST status, and the countries and cities that use them — clean, dependable JSON. Sign up free and get an API key in seconds.

GET /v1/timezones Live

countries, cities, convert, DST transitions coming next.

Get your free API key →
// France's time zones, right now
GET /v1/timezones?country=fr
{
"data": [
{
"iana": "Europe/Paris",
"display_name": "Paris",
"current": {
"utc_offset": "+02:00",
"abbreviation": "CEST",
"is_dst": true
}
}
]
}