IANA tz database · zone identifier

Indian/Mayotte

The IANA tz database identifier for East Africa Time in Mayotte. Store this string — not the abbreviation, not the offset — and your timestamps stay correct forever.

UTC+03:00Abbreviation EATNo DST — never observed
Time in Indian/Mayotte☾ Night
01:58:37
Thursday, July 16, 2026
Offset
UTC+03:00
Abbreviation
EAT
DST
No DST

Current offset

UTC+03:00

same year-round

Abbreviation

EAT

used year-round

DST behaviour

Never

has never observed daylight saving

Country

🇾🇹 Mayotte

ISO 3166: YT · view country page →

Using this identifier

The string to put in your code.

Indian/Mayotte is the identifier to use in code and config for this region. Every modern language, database, and OS resolves it through the same tz database, so the examples here behave identically everywhere.

Avoid storing EAT or +03:00 — abbreviations are ambiguous and fixed offsets can't follow rule changes.

// format a date in this zone
new Intl.DateTimeFormat('en-US', {
timeZone: 'Indian/Mayotte',
dateStyle: 'full', timeStyle: 'long'
}).format(new Date());

Offset & DST behaviour

One offset,
115 years.

Indian/Mayotte has kept UTC+03:00 year-round since 30 June 1911 — no daylight saving and no offset changes on record since. It is among the most stable identifiers in the database.

Every offset this zone has kept

+03:00:56UTC+03:00 · UNCHANGED 30 June 1911 NOW

Keeping this offset since

30 June 1911

Next transition

None scheduled

no DST rules exist for this zone

Safe to assume

Local = UTC + 3h, always

…but store the identifier anyway

Technical record

The database entry, in full.

source: IANA tz database

IdentifierIndian/Mayotte
ISO country codeYT🇾🇹 Mayotte
Reference coordinates12.78°S, 45.23°Etz database reference point
Standard offsetUTC+03:00abbreviation EAT
Daylight offset—daylight saving has never been observed

Where it applies

All of Mayotte, one clock.

Looking for travel-friendly info? See Mamoudzou or East Africa Time.

🇾🇹
Mayotte

321K people, one time zone. The whole country resolves to Indian/Mayotte.

Country page →
🇾🇹 Mamoudzou
01:58
01:58:37 · EAT
pop. 71KEAT

Related identifiers

Nearby in the database.

Same zone group · East Africa Time

other identifiers keeping EAT

Same offset · UTC+03:00

other zones keeping this offset right now

Frequently asked questions

Answers specific to this identifier — generated from the database record. Can't find what you need? Email [email protected].

What UTC offset is Indian/Mayotte?
Indian/Mayotte is UTC+03:00, year-round. The offset never changes because the zone does not observe daylight saving time.
Does Indian/Mayotte observe daylight saving time?
No. Indian/Mayotte has never observed DST — it has kept UTC+03:00 continuously since 30 June 1911.
Which country uses Indian/Mayotte?
Mayotte. The identifier covers the whole country.
Is Indian/Mayotte the same as EAT?
Indian/Mayotte is one of the IANA zones that keeps East Africa Time (EAT). Use Indian/Mayotte in software — EAT is a human-friendly label, not a valid identifier.

Free · Developer API

This zone, as JSON.

Everything on this page — offset, abbreviation, DST rules, coordinates — from one endpoint, always current with the latest tzdb release.

GET /v1/timezones Live

countries, cities, convert, DST transitions coming next.

Get your free API key →
// this identifier, resolved live
GET /v1/timezones?iana=Indian/Mayotte
{
"iana": "Indian/Mayotte",
"utc_offset": "+03:00",
"abbreviation": "EAT",
"observes_dst": false,
"country": "YT"
}