LHDT Time to AST Time Converter

Warning! LHDT has automatically switched to LHST
AST has automatically switched to ADT

LHDT stands for Lord Howe Daylight Time (NOT in use)

LHST stands for Lord Howe Standard Time (in use)

AST stands for Atlantic Standard Time (NOT in use)

ADT stands for Atlantic Daylight Time (in use)

LHST = UTC + 10:30

09:19:01

Saturday, July 19, 2025

ADT = UTC - 03:00

19:49:01

Friday, July 18, 2025

LHST(Lord Howe Standard Time) and ADT(Atlantic Daylight Time) Mapping Table
Lord Howe Standard Time(LHST)	Atlantic Daylight Time(ADT)
00:00	10:30-1 day
01:00	11:30-1 day
02:00	12:30-1 day
03:00	13:30-1 day
04:00	14:30-1 day
05:00	15:30-1 day
06:00	16:30-1 day
07:00	17:30-1 day
08:00	18:30-1 day
09:00	19:30-1 day
10:00	20:30-1 day
11:00	21:30-1 day
12:00	22:30-1 day
13:00	23:30-1 day
14:00	00:30
15:00	01:30
16:00	02:30
17:00	03:30
18:00	04:30
19:00	05:30
20:00	06:30
21:00	07:30
22:00	08:30
23:00	09:30

LHST(Lord Howe Standard Time)

Lord Howe Standard Time(LHST) is 10:30 hours ahead of Coordinated Universal(UTC) Time.This timezone is used during standard time in: AustraliaLord Howe Standard Time is a half-hour time zone. Its local time differs by 30 minutes instead of the normal whole hour.

Typical City of LHST (Lord Howe Standard Time)

Australia - Lord Howe Island (Winter)

ADT(Atlantic Daylight Time)

Atlantic Daylight Time(ADT) is 03:00 hours behind Coordinated Universal(UTC) Time.This timezone is a Daylight Saving Time timezone and is used in: North America

Typical City of ADT (Atlantic Daylight Time)

Canada - Halifax (Summer)
Bermuda - Hamilton (Summer)