World Timezones

LHST to AST Converter

Compare AST to LHST instead
Lord Howe Time3:06 pmFri, Jun 5
Lord Howe TimeLHST
Oceania · UTC+10:30
3:06 pmFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Arabia Standard TimeAST
Middle East · UTC+3
7:36 amFri, Jun 5
4p
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p

Offset

The time difference between Lord Howe Time and Arabia Standard Time is 7.5 hours.

7.5 hours

Lord Howe Time (LHST) is ahead of Arabia Standard Time (AST).

LHST: UTC+10:30

AST: UTC+3

Neither Lord Howe Time nor Arabia Standard Time is currently observing daylight saving time.

When to schedule

Standard business hours (9 AM–5 PM, Mon–Fri) in Lord Howe Time and Arabia Standard Time don't overlap on the same weekday. Arabia Standard Time is 7 hours behind Lord Howe Time.

With some flexibility, there’s a workable window outside standard hours:

  • 3 PM–8 PM in Lord Howe Time (7 AM–12 PM in Arabia Standard Time) — suggest 5:00 PM Lord Howe Time (9:30 AM Arabia Standard Time).

This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.

This window may shift by an hour during daylight saving time.

Note: the working week in Saudi Arabia runs Sunday–Thursday; Friday–Saturday is the weekend, so overlap on those days is limited.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Australia

  • New Year's DayThu, Jan 1
  • Australia DayMon, Jan 26
  • Good FridayFri, Apr 3
  • Easter MondayMon, Apr 6
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

About these zones

Lord Howe Time is also known as LHST, or LHDT. To call Australia, dial +61.

Arabia Standard Time is also known as AST. To call Saudi Arabia, dial +966.

Arabia Standard Time is approximately 8,350 miles west of Lord Howe Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

LHSTASTDay
12:00 am4:30 pm-1 day
1:00 am5:30 pm-1 day
2:00 am6:30 pm-1 day
3:00 am7:30 pm-1 day
4:00 am8:30 pm-1 day
5:00 am9:30 pm-1 day
6:00 am10:30 pm-1 day
7:00 am11:30 pm-1 day
8:00 am12:30 amSame day
9:00 am1:30 amSame day
10:00 am2:30 amSame day
11:00 am3:30 amSame day
12:00 pm4:30 amSame day
1:00 pm5:30 amSame day
2:00 pm6:30 amSame day
3:00 pm7:30 amSame day
4:00 pm8:30 amSame day
5:00 pm9:30 amSame day
6:00 pm10:30 amSame day
7:00 pm11:30 amSame day
8:00 pm12:30 pmSame day
9:00 pm1:30 pmSame day
10:00 pm2:30 pmSame day
11:00 pm3:30 pmSame day

Daylight saving time

Lord Howe Time observes daylight saving time; Arabia Standard Time does not. The offset between the two zones changes when Lord Howe Time transitions: on Sunday, October 4, 2026, clocks spring forward from LHST to LHDT.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Lord Howe Time
Sunrise
6:47 AM
Sunset
4:59 PM
Day length
10h 11m
Arabia Standard Time
Sunrise
5:05 AM
Sunset
6:41 PM
Day length
13h 36m

Daylight overlap: 4h 24m — 12:35 PM–4:59 PM in Lord Howe Time (5:05 AM–9:29 AM in Arabia Standard Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Arabia Standard Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Arabia Standard Time

  • JED
  • RUH
  • MED
  • DMM

Related conversions

Common conversions

What is 9:00 am LHST in AST?
9:00 am LHST is 1:30 am AST.
What is 12:00 pm LHST in AST?
12:00 pm LHST is 4:30 am AST.
What is 12:30 pm LHST in AST?
12:30 pm LHST is 5:00 am AST.
What is 2:00 pm LHST in AST?
2:00 pm LHST is 6:30 am AST.
What is 5:00 pm LHST in AST?
5:00 pm LHST is 9:30 am AST.
What is 11:30 pm LHST in AST?
11:30 pm LHST is 4:00 pm AST.