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LHST to ChST Converter

LHST
Lord Howe Standard Time
GMT +10:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
ChST
Chamorro Standard Time
GMT +10
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

LHST is 30 minutes ahead of ChST. LHST uses GMT +10:30, and ChST uses GMT +10 for this comparison.

For example, 12:30 am LHST is 12:00 am ChST. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 9:30am-5pm LHST, which is 9am-4:30pm ChST.

Compare LHST time with ChST 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 Chamorro Standard Time
12:30 am00:30 in LHST is 12:00 am00:00 in ChST

LHST to ChST 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 ChST

12:30 am00:30 Lord Howe Standard Time (LHST). Offset UTC +10:30 hours
12:00 am00:00 Chamorro Standard Time (ChST). Offset UTC +10:00 hours

12:30 am00:30 LHST / 12:00 am00:00 ChST

LHSTChST
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

Chamorro Standard Time

Offset: ChST is 10 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: Guam, Northern Mariana Islands

Principal Cities: The largest city in the ChST time zone is Saipan in Northern Mariana Islands, with about 48,220 people. Other major cities in this time zone include Dededo Village, Yigo Village, Tamuning Tumon Harmon Village, Mangilao Village.

Daylight Saving: Clocks in Chamorro Standard Time (ChST) do not change for daylight saving time, so ChST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

ChST 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 ChST
  • K - short form of 'Kilo'
IANA/Olson: Reflects ChST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Pacific/Guam
  • Pacific/Saipan
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
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT