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LHST
Lord Howe Standard Time
GMT +10:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
KDT
Korea Daylight Time
GMT +10
12am
3am
6am
9am
12pm
3pm
6pm
9pm
KDT is not used on this date
This converter keeps KDT at GMT +10. Seoul uses KST (GMT +9) on this date. Open the KST converter, or choose Seoul, Busan, or Pyongyang for city-specific time.

Quick answers

Selected conversion

The selected date and time will appear here when the converter loads.

LHST and KDT examples

These examples always use LHST (UTC+10:30) and KDT (UTC+10). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

LHST is 30 minutes ahead of KDT.

How the time difference changes

Depending on seasonal clock changes, LHST is 30 minutes ahead of KDT or LHDT is 1 hour ahead of KDT.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in LHST correspond to 8:30 am to 4:30 pm in KDT or working hours of 9:00 am to 5:00 pm in LHDT correspond to 8:00 am to 4:00 pm in KDT.

Compare LHST time with KDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Lord Howe Standard Time is 0 hours and 30 minutes ahead of Korea Daylight Time
4:30 pm16:30 in LHST is 4:00 pm16:00 in KDT

LHST to KDT call time
Best time for a conference call or a meeting is between 9:30am-5pm in LHST which corresponds to 9am-4:30pm in KDT

4:30 pm16:30 Lord Howe Standard Time (LHST). Offset UTC +10:30 hours
4:00 pm16:00 Korea Daylight Time (KDT). Offset UTC +10:00 hours

4:30 pm16:30 LHST / 4:00 pm16:00 KDT

LHSTKDT
12am (midnight)11:30 pm
1am12:30 am
2am1:30 am
3am2:30 am
4am3:30 am
5am4:30 am
6am5:30 am
7am6:30 am
8am7:30 am
9am8:30 am
10am9:30 am
11am10:30 am
12pm (noon)11:30 am
1pm12:30 pm
2pm1:30 pm
3pm2:30 pm
4pm3:30 pm
5pm4:30 pm
6pm5:30 pm
7pm6:30 pm
8pm7:30 pm
9pm8:30 pm
10pm9:30 pm
11pm10:30 pm
00:0023:30
01:0000:30
02:0001:30
03:0002:30
04:0003:30
05:0004:30
06:0005:30
07:0006:30
08:0007:30
09:0008:30
10:0009:30
11:0010:30
12:0011:30
13:0012:30
14:0013:30
15:0014:30
16:0015:30
17:0016:30
18:0017:30
19:0018:30
20:0019:30
21:0020:30
22:0021:30
23:0022:30

Lord Howe Standard Time

Offset: LHST is 10 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Australia

Countries using this time zone: Australia

LHST Time Zone Geo Map
LHST timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Lord Howe Daylight Time (LHDT).

Start: Lord Howe Standard Time (LHST) started on Sunday, April 5, 2026 at 2:00 am local time and clocks were set one hour back to Sunday, April 5, 2026, 1:30 am. Standard time starts annually on the first Sunday of April.

End: Lord Howe Standard Time (LHST) ends on Sunday, October 4, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, October 4, 2026, 2:30 am local daylight time instead. Standard time ends annually on the first Sunday of October.

LHST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates an offset of ten hours and thirty minutes to the east of the zero meridian.
Time zones with the GMT +10:30 offset:
  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time

Korea Daylight Time

Offset: KDT is 10 hours ahead Greenwich Mean Time (GMT) and is used in Asia

KDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +10 - basic short
  • +1000 - basic
  • +10:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Kilo - Military abbreviation for KDT
  • K - short form of 'Kilo'
Time zones with the GMT +10 offset:
  • AEST - Australian Eastern Standard Time
  • CHUT - Chuuk Time
  • ChST - Chamorro Standard Time
  • K - Kilo Time Zone
  • KDT - Korea Daylight Time
  • PGT - Papua New Guinea Time
  • VLAT - Vladivostok Time
  • YAKST - Yakutsk Summer Time
  • YAPT - Yap Time