Time zone · Oceania
LHST
Lord Howe Standard Time
Lord Howe Standard Time (LHST) covers a single, tiny Australian island timezone that lives at UTC+10:30 — one of the few half-hour offsets left on Earth. When clocks shift during daylight saving, Lord Howe Island springs and falls just 30 minutes different from its standard and 30 minutes different during DST, giving its short, gentle days a subtle seasonal rhythm that locals and remote island life make wonderfully distinct.
Sunday, May 31, 2026
Current offset
UTC+10:30
Standard · +1030
Daylight saving
Not active
Returns 4 Oct 2026
IANA zones
1
1 observe DST, 0 don't
DST offset
UTC+11:00
LHDT · +1h
About LHST
Standard time, with a summer shift.
Lord Howe Standard Time (LHST) covers a single, tiny Australian island timezone that lives at UTC+10:30 — one of the few half-hour offsets left on Earth. When clocks shift during daylight saving, Lord Howe Island springs and falls just 30 minutes different from its standard and 30 minutes different during DST, giving its short, gentle days a subtle seasonal rhythm that locals and remote island life make wonderfully distinct.
DST schedule · LHST · LHDT
2026 Sunday · clocks spring forward
Clocks spring forward by one hour · in 4 months.
One year, two clocks
IANA zones · the technical identifiers
The zone that resolve to LHST.
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 LHST is used
One country.
Frequently asked questions
Common questions about LHST, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- How many time zones use Lord Howe Standard Time?
- Only one: Australia/Lord_Howe on Lord Howe Island, Australia. LHST is effectively a single-zone region with its own unique half-hour offset.
- Why does Lord Howe Island use a half-hour offset instead of a full hour?
- Historically, Lord Howe Island chose a +10:30 offset to align partly with mainland eastern Australia while keeping local solar time meaningful; the 30-minute increment reflects its geographic and political compromise.
- Is Lord Howe Island the only place with a half-hour DST shift?
- It's one of the very few places in the world that shifts by only 30 minutes during DST — a subtle but crucial change for such a small island community.
- When does Lord Howe Island switch to daylight saving time?
- The next DST transition is scheduled for 2026-10-04 02:30:00 local time, when clocks move forward from +10:30 to +11:00.
- What is unique about LHST's UTC offsets?
- LHST maintains a standard offset of UTC+10:30 and shifts to UTC+11:00 during DST — one of the smallest daylight saving shifts in the world, just 30 minutes.
- How does living on Lord Howe Island differ in winter versus summer?
- In winter, the island is at UTC+10:30; in summer during DST, it's at UTC+11:00 — a subtle but noticeable shift for scheduling and daily life on the island.
- Is Lord Howe Standard Time widely used outside the island?
- No — it's specific to Lord Howe Island, making it one of the most localized and rare timezone codes in the world.
- Which country governs Lord Howe Standard Time?
- Australia governs this timezone, with Lord Howe Island being a small external territory in the Tasman Sea.
Free · Developer API
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