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Convert China Standard Time to Hawaii Standard Time

Instantly convert China Standard Time (CST) to Hawaii Standard Time (HST) with our free online calculator.

Reviewed by Christopher FloiedUpdated

China Standard Time

01:20:56 PM

Wed, Jun 24 (CST)

Hawaii Standard Time

07:20:56 PM

Tue, Jun 23 (HST)

HST is -18 hours from CST

Convert a Specific Time

CST

24-Hour Comparison

CSTHST
12:00 AM6:00 AM(-1d)
1:00 AM7:00 AM(-1d)
2:00 AM8:00 AM(-1d)
3:00 AM9:00 AM(-1d)
4:00 AM10:00 AM(-1d)
5:00 AM11:00 AM(-1d)
6:00 AM12:00 PM(-1d)
7:00 AM1:00 PM(-1d)
8:00 AM2:00 PM(-1d)
9:00 AM3:00 PM(-1d)
10:00 AM4:00 PM(-1d)
11:00 AM5:00 PM(-1d)
12:00 PM6:00 PM(-1d)
1:00 PM7:00 PM(-1d)
2:00 PM8:00 PM(-1d)
3:00 PM9:00 PM(-1d)
4:00 PM10:00 PM(-1d)
5:00 PM11:00 PM(-1d)
6:00 PM12:00 AM
7:00 PM1:00 AM
8:00 PM2:00 AM
9:00 PM3:00 AM
10:00 PM4:00 AM
11:00 PM5:00 AM

How to Convert China Standard Time to Hawaii Standard Time

Formula

To convert China Standard Time (CST) to Hawaii Standard Time (HST): Convert CST to HST

About China Standard Time (CST)

China Standard Time (CST, IANA: Asia/Shanghai) is the unified civil time of the People's Republic of China, set at UTC+8:00 year-round (no DST). Despite China's vast east-west extent (~5,200 km from Xinjiang's western border at 73°E to Heilongjiang's eastern border at 135°E — 62° of longitude or ~4 hours of solar time), the entire country uses a single time zone since 1949 (consolidated from 5 separate zones used during the Republic of China era). This means Kashgar Xinjiang sees solar noon at approximately 14:00 CST in summer, while Shanghai sees solar noon at approximately 11:50 CST — a stark practical discrepancy. Hong Kong Time (HKT) and Macau Time (MOT) are identical at UTC+8 but use different IANA identifiers for historical reasons. CST serves approximately 1.42 billion people. CST is identical in offset to Singapore Time (SGT), Malaysia Time (MYT), Philippine Time (PHT), Australian Western Standard Time (AWST), Hong Kong Time (HKT). Major CST cities: Shanghai (24M), Beijing (21.5M), Chongqing (32M), Guangzhou (15M), Shenzhen (12.5M), Chengdu (16.3M), Tianjin (13.7M), Wuhan (11M), Xi'an (13M), Hangzhou (11.9M). Affects: SSE + SZSE stock exchanges, Beijing Central Government working hours.

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.

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