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Australia/Lord_Howe time zone

1:01AMUTC+11

UTC+11UTC+11+16 h vs New York (you)

About Australia/Lord_Howe

Australia/Lord_Howe is the IANA time zone for Lord Howe Island in Australia. It currently keeps UTC+10:30 in winter and UTC+11 in summer.

Its principal location is Lord Howe at 31.55° S, 159.08° E.

Rule for future years (POSIX TZ string)

<+1030>-10:30<+11>-11,M10.1.0,M4.1.0

The standard time is called “+1030” (a numeric abbreviation) and is UTC+10:30. POSIX writes the offset with the opposite sign (west of Greenwich is positive), which is why the string says "-10:30". Daylight saving time is called “+11” (a numeric abbreviation) and is UTC+11. It starts on the first Sunday of October at 02:00 and ends on the first Sunday of April at 02:00, local time. Software that has no full tzdata copy, such as many embedded devices, can use this string directly as the TZ environment variable.

Upcoming transitions

Computed from tzdata 2026f; local times are read on the clock just before each change.

History of Australia/Lord_Howe since 1970

The record starts with local mean time (UTC+10:36), which ended on January 31, 1895. The first daylight saving time in the record is in 1981.

YearsClocksAbbreviations
1970–1980UTC+10 all yearAEST
1981UTC+10:30 in winter, UTC+10 in summer; also UTC+11:30 for part of the yearAEST
1982–1984UTC+10:30 in winter, UTC+11:30 in summer—
1985UTC+10:30 in winter, UTC+11:30 in summer; also UTC+11 for part of the year—
1986 onwardUTC+10:30 in winter, UTC+11 in summer—

Before 1970

1 offset change before 1970 in the record:

Changes of the winter (standard) offset: Sunday, March 1, 1981, UTC+10 → UTC+10:30.

tzdata commits to accuracy from 1970 for every zone (zone1970.tab); earlier entries are historical research and may be incomplete.

Aliases and zones with the same clock

These older or country-specific IDs are links to Australia/Lord_Howe in tzdata. Their pages redirect here: Australia/LHI.

Convert Lord Howe time

Tip: Alt+↑/↓ steps the time by 15 minutes (Shift: one hour). The link keeps the date, time and direction.

Using Australia/Lord_Howe in code

Every major platform reads the same IANA ID. Store instants in UTC and convert with the ID at display time; never store a fixed offset for a place that has daylight saving time.

// JavaScript
new Date().toLocaleString('en-US', { timeZone: 'Australia/Lord_Howe' })

# Python 3.9+
from zoneinfo import ZoneInfo
from datetime import datetime
datetime.now(ZoneInfo('Australia/Lord_Howe'))

// Java
java.time.ZonedDateTime.now(java.time.ZoneId.of("Australia/Lord_Howe"))

// Go
loc, _ := time.LoadLocation("Australia/Lord_Howe")
time.Now().In(loc)

-- PostgreSQL
SELECT now() AT TIME ZONE 'Australia/Lord_Howe';

# Shell
TZ='Australia/Lord_Howe' date

Platforms ship their own copy of tzdata and update it on their own schedule. After a rule change, outputs can differ until the platform updates; this page uses tzdata 2026f.

Questions

What is the UTC offset of Australia/Lord_Howe?
UTC+10:30 in winter and UTC+11 in summer (daylight saving time from the first Sunday of October at 2:00 AM to the first Sunday of April at 2:00 AM).
Does Australia/Lord_Howe observe daylight saving time?
Yes: clocks move 30 minutes forward on the first Sunday of October at 2:00 AM and back on the first Sunday of April at 2:00 AM.
Is Australia/LHI the same as Australia/Lord_Howe?
Yes. Australia/LHI is a link (alias) to Australia/Lord_Howe in tzdata and gives the same time since 1970. It remains a valid ID.
Which countries use Australia/Lord_Howe?
Australia, according to zone1970.tab in tzdata.

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