British Indian Ocean Territory
British Indian Ocean Territory (IO, IOT) is a territory in Eastern Africa, with Diego Garcia as its capital. The currency is the US Dollar (USD, $). The international dialling code is +246; mobile numbers are written like 380 1234. The time zone is Indian/Chagos. Official language: English.
CurrencyUSD$
Dial code+246e.g. 380 1234
Time zoneChagosUTC+06:00
LanguageEnglish
CapitalDiego Garcia
Population3.5K60 km²
Overview
- Official name
- British Indian Ocean Territory
- Native name
- British Indian Ocean Territory
- ISO 3166-1 alpha-2
- IO
- ISO 3166-1 alpha-3
- IOT
- ISO 3166-1 numeric
- 086
- Demonym
- Indian
- Capital
- Diego Garcia
- Region
- Africa › Eastern Africa
- Status
- Dependency or territory
- Groups
- Eastern Africa
- Internet domain
- .io
- Coordinates
- -6, 71.5
- Area
- 60 km²
- Population
- 3,500
- GDP
- $189.2M ($54.1K per person)
- Literacy
- 99%
- Landlocked
- No
- Land borders
- None
Currency
US Dollar USD
- Symbol
- $
- Minor units
- 2 decimals
- Example
- US$1,234.50
Languages
| Language | Status | Share of population | Writing |
|---|---|---|---|
| English en | Official | 100% (3.5K) |
Time zones
| Time zone | Local time | Standard | Daylight saving | Name |
|---|---|---|---|---|
| Indian/Chagos | UTC+06:00 | none | Indian Ocean Time |
Phone numbers
- Calling code
- +246
- Dial-out prefix
- 00
- Trunk prefix
- none
- National number length
- 7 digits
Number types
| Type | National format | International format | Layout | Digits |
|---|---|---|---|---|
| Fixed line | 370 9100 | +246 370 9100 | XXX XXXX | 7 |
| Mobile | 380 1234 | +246 380 1234 | XXX XXXX | 7 |
Show the 1 formatting rules
| Digits pattern | Leading digits | Format | International |
|---|---|---|---|
(\d{3})(\d{4}) | 3 | $1 $2 | $1 $2 |
Address and postal code
Address layout
{Name}
{Organization}
{Street address}
{City}
{Postal code}
- Required fields
- Street address, City, Postal code
- Uppercase fields
- City, Postal code
Postal code
- Pattern
BBND 1ZZ- Examples
- BBND 1ZZ
Calendar, units and conventions
- First day of the week
- Monday
- Weekend
- Saturday to Sunday
- First week of the year
- Contains at least 1 day of the new year
- Hour cycle
- 24-hour (0–23), also h, hb, hB
- Calendars
- gregorian
- Measurement system
- Metric
- Temperature
- Celsius
- Paper size
- A4
- Locales
Number and date formats
As written by the English (British Indian Ocean Territory) locale (en-IO), amounts in USD.
- Number
- 1,234,567.891
- Percent
- 45.7%
- Currency (USD)
- US$1,234,567.89
- Accounting
- (US$1,234,567.89)
- Currency, name
- 1,234,567.89 US dollars
- Compact short
- 1.2M
- Compact long
- 1.2 million
- Scientific
- 1.235E6
- Speed
- 88 kilometres per hour
- Temperature
- 21.5°C
- Date, full
- Friday, 27 March 2026
- Date, long
- 27 March 2026
- Date, medium
- 27 Mar 2026
- Date, short
- 27/03/2026
- Time, medium
- 15:04:05
- Time, short
- 15:04
- Date and time
- 27 Mar 2026, 15:04
- Month and year
- March 2026
- Weekday
- Friday
- Relative time
- yesterday · in 3 days · 2 hours ago
- List: and
- A, B and C
- List: or
- A, B or C