Convert Indochina Time to Hawaii Standard Time
Instantly convert Indochina Time (ICT) to Hawaii Standard Time (HST) with our free online calculator.
Indochina Time
12:20:54 PM
Wed, Jun 24 (ICT)
Hawaii Standard Time
07:20:54 PM
Tue, Jun 23 (HST)
Convert a Specific Time
24-Hour Comparison
| ICT | HST |
|---|---|
| 12:00 AM | 7:00 AM(-1d) |
| 1:00 AM | 8:00 AM(-1d) |
| 2:00 AM | 9:00 AM(-1d) |
| 3:00 AM | 10:00 AM(-1d) |
| 4:00 AM | 11:00 AM(-1d) |
| 5:00 AM | 12:00 PM(-1d) |
| 6:00 AM | 1:00 PM(-1d) |
| 7:00 AM | 2:00 PM(-1d) |
| 8:00 AM | 3:00 PM(-1d) |
| 9:00 AM | 4:00 PM(-1d) |
| 10:00 AM | 5:00 PM(-1d) |
| 11:00 AM | 6:00 PM(-1d) |
| 12:00 PM | 7:00 PM(-1d) |
| 1:00 PM | 8:00 PM(-1d) |
| 2:00 PM | 9:00 PM(-1d) |
| 3:00 PM | 10:00 PM(-1d) |
| 4:00 PM | 11:00 PM(-1d) |
| 5:00 PM | 12:00 AM |
| 6:00 PM | 1:00 AM |
| 7:00 PM | 2:00 AM |
| 8:00 PM | 3:00 AM |
| 9:00 PM | 4:00 AM |
| 10:00 PM | 5:00 AM |
| 11:00 PM | 6:00 AM |
How to Convert Indochina Time to Hawaii Standard Time
Formula
To convert Indochina Time (ICT) to Hawaii Standard Time (HST): Convert ICT to HST
About Indochina Time (ICT)
Indochina Time (ICT, IANA: Asia/Bangkok, Asia/Ho_Chi_Minh) is the civil time of mainland Southeast Asia (excluding Myanmar + Indonesia), set at UTC+7:00 year-round (no DST). ICT serves approximately 250 million people across: Thailand, Vietnam, Cambodia, Laos, Christmas Island (Australian territory in Indian Ocean), Java + Sumatra + western Indonesia (which uses Western Indonesian Time WIB = identical UTC+7 offset). ICT shares its offset with Krasnoyarsk Time (Russia, UTC+7) and Davis Antarctica research station. Major ICT cities: Bangkok Thailand (10.7M metro — Southeast Asia's largest tourist destination + ASEAN economic hub), Ho Chi Minh City Vietnam (10M city, 14M metro — formerly Saigon, Vietnam's largest city), Hanoi Vietnam (8M metro — capital), Jakarta Indonesia (10.5M city, 35M metro — uses WIB which is identical to ICT but a different zone-name), Phnom Penh Cambodia (2M), Vientiane Laos (820K). Affects: SET (Stock Exchange of Thailand) trading hours, HOSE + HNX (Vietnam stock exchanges) trading, Phnom Penh Securities Exchange (CSX) hours, Bangkok BTS Skytrain + MRT subway operating hours, and ASEAN diplomatic-meeting schedules.
About Hawaii Standard Time (HST)
Hawaii Standard Time (HST, IANA: Pacific/Honolulu) is the time zone for the State of Hawaii and the Aleutian Islands of Alaska west of 169.5°W. HST is UTC-10:00 year-round and does not observe Daylight Saving Time per Hawaii Revised Statutes §1-31 (Hawaii opted out of the Uniform Time Act of 1966). When the US mainland switches to Daylight Saving Time in March, the offset from Hawaii to the West Coast (Pacific Time) becomes 3 hours instead of the standard 2 hours. Honolulu sees solar noon at approximately 12:30 PM HST in summer. HST is the same offset as Cook Island Time (CKT) and Tahiti Time (TAHT) in French Polynesia, allowing easy mental conversion across the central Pacific. Time-sensitive activities affected by HST include Pacific tsunami warning system coordination per NOAA NTWC, US military operations from Joint Base Pearl Harbor-Hickam, and the Mauna Kea astronomical observatories' nightly observing schedules.