World Timezones

LHST to ACST Converter

Compare ACST 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
Australian Central TimeACST
Oceania · UTC+9:30
2:06 pmFri, Jun 5
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p

Offset

The time difference between Lord Howe Time and Australian Central Time is 1 hour.

1 hour

Lord Howe Time (LHST) is ahead of Australian Central Time (ACST).

LHST: UTC+10:30

ACST: UTC+9:30

Neither Lord Howe Time nor Australian Central Time is currently observing daylight saving time.

When to schedule

Business-hours overlap: 10 AM–5 PM in Lord Howe Time (9 AM–4 PM in Australian Central Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 1:00 PM Lord Howe Time (12:00 PM Australian Central Time).

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

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.

Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.

Australian Central Time is approximately 1,200 miles west of Lord Howe Time.

Quick reference

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

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

Daylight saving time

Both Lord Howe Time and Australian Central Time observe daylight saving time and transition on the same date.

Next transition: Sunday, October 4, 2026 (spring forward).

Because they transition simultaneously, the offset between these zones remains constant year-round.

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
Australian Central Time
Sunrise
7:18 AM
Sunset
5:12 PM
Day length
9h 55m

Daylight overlap: 8h 41m — 8:18 AM–4:59 PM in Lord Howe Time (7:18 AM–3:59 PM in Australian Central Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Australian Central Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Australian Central Time

  • ADL

Related conversions

Common conversions

What is 9:00 am LHST in ACST?
9:00 am LHST is 8:00 am ACST.
What is 12:00 pm LHST in ACST?
12:00 pm LHST is 11:00 am ACST.
What is 12:30 pm LHST in ACST?
12:30 pm LHST is 11:30 am ACST.
What is 2:00 pm LHST in ACST?
2:00 pm LHST is 1:00 pm ACST.
What is 5:00 pm LHST in ACST?
5:00 pm LHST is 4:00 pm ACST.
What is 11:30 pm LHST in ACST?
11:30 pm LHST is 10:30 pm ACST.