Beijing to Honolulu
-18hBeijing
CSTSOURCEHonolulu
HSTGreen rows indicate typical business hours (9 AM - 5 PM)
CST and HST on the World Map
The map below highlights the CST (China Standard Time) and HST (Hawaii Standard Time) timezone regions across the globe.
CST – China Standard Time
UTC+08:00China Standard Time (CST) covers all of mainland China, 8 hours ahead of UTC.
- •China uses a single time zone despite spanning 5 geographical zones.
- •In Xinjiang (western China), sunset can be as late as midnight in summer.
- •China abolished daylight saving time in 1991.
- •The Shanghai Stock Exchange operates on CST/Beijing Time.
HST – Hawaii Standard Time
UTC-10:00Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.
- •Hawaii does not observe daylight saving time.
- •HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
- •Hawaii is one of only two US states that don't observe DST (the other is Arizona).
About Honolulu
WikipediaHonolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.
Pearl Harbor memorial receives over 2 million visitors annually.
Beijing vs Honolulu: Offsets, DST and Best Call Times
Beijing runs on China Standard Time (CST) at UTC+08:00. Honolulu runs on Hawaii-Aleutian Standard Time (HST) at UTC-10:00. That puts Beijing 18 hours behind Honolulu — a difference of -18h at the current offsets.
In practice, when it is 9:00 AM in Beijing it is 3:00 PM in Honolulu on the previous day. Midnight in Beijing is 6:00 AM in Honolulu. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Beijing to Honolulu time conversion table
| Beijing (CST) | Honolulu (HST) | Day |
|---|---|---|
| 12:00 AM | 6:00 AM | previous day |
| 6:00 AM | 12:00 PM | previous day |
| 7:00 AM | 1:00 PM | previous day |
| 8:00 AM | 2:00 PM | previous day |
| 9:00 AM | 3:00 PM | previous day |
| 12:00 PM | 6:00 PM | previous day |
| 3:00 PM | 9:00 PM | previous day |
| 5:00 PM | 11:00 PM | previous day |
| 6:00 PM | 12:00 AM | same day |
| 9:00 PM | 3:00 AM | same day |
Why people convert Beijing to Honolulu time
- Scheduling a call from Beijing to Honolulu: a 10:00 AM start in Beijing lands at 4:00 PM in Honolulu the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -18h gap: Beijing and Honolulu have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Honolulu is 3:00 PM in Beijing.
- Keeping family and friends in sync: knowing that 8:00 PM in Beijing is 2:00 AM in Honolulu makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM CST" is unambiguous; "3 PM" across a -18h gap is not.
- With a -18h gap there is no shared 9-to-5 window, so alternate the early start: one week Beijing takes the early slot, the next week Honolulu does.
About CST (China Standard Time)
China Standard Time (CST, also known as Beijing Time) is used across all of mainland China despite the country spanning five geographical time zones. This single-timezone policy was adopted in 1949. China does not observe daylight saving time. CST is shared with Hong Kong (HKT), Macau, Taiwan, Singapore, Malaysia, and the Philippines, making UTC+08:00 one of the most used offsets in the world.
About HST (Hawaii Standard Time)
Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.
Best time to call between Beijing and Honolulu
With a -18h offset there is no overlap inside a normal 9 AM – 5 PM day. Honolulu opens at 9:00 AM HST, which is 3:00 PM in Beijing, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Beijing and Honolulu have no shared working hours because of the -18h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Beijing is 18 hours behind Honolulu (CST UTC+08:00 → HST UTC-10:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Beijing and Honolulu?
Beijing (CST, UTC+08:00) is 18 hours behind Honolulu (HST, UTC-10:00). The gap is currently -18h.
How do I convert Beijing time to Honolulu time?
Add -18h to Beijing local time. For example, 9:00 AM in Beijing is 3:00 PM in Honolulu (previous day).
What time is it in Honolulu right now?
Honolulu uses HST at UTC-10:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -18h offset from Beijing.
What is the best time to call Honolulu from Beijing?
There is no shared working-hours window because of the -18h gap. The closest option is 1:00 PM in Beijing, which is 7:00 PM in Honolulu.
Which is behind, Beijing or Honolulu?
Beijing is 18 hours behind Honolulu. When it is 12:00 PM in Beijing it is 6:00 PM in Honolulu.
Do Beijing and Honolulu use different time zones?
Beijing (China) uses CST at UTC+08:00, while Honolulu (USA) uses HST at UTC-10:00. The IANA identifiers are Asia/Shanghai and Pacific/Honolulu.
Does daylight saving time affect the Beijing–Honolulu difference?
Neither zone observes daylight saving time, so the -18h offset between Beijing and Honolulu is fixed all year.
Which other cities share Beijing's time zone?
CST also covers Shanghai, Beijing, Shenzhen, Guangzhou, Chengdu, Hong Kong, Taipei, Wuhan and 2 more.
Which countries use CST, Beijing's zone?
CST is used in China, Hong Kong, Macau, Taiwan.
Is there a day difference between Beijing and Honolulu?
Sometimes. The -18h gap is large enough that 8:00 PM or later in Beijing already falls on the in Honolulu.
What is the time difference between Beijing and Honolulu?
Honolulu is -18h from Beijing.
What timezone is Beijing in?
Beijing operates on its local timezone.
What timezone is Honolulu in?
Honolulu operates on Hawaii Standard Time (HST), UTC-10 with no daylight saving. Hawaii's consistent time makes it a predictable connection between Asia and mainland USA.
What are the business hours in Honolulu?
Standard business hours in Honolulu are 8:00 AM - 5:00 PM HST.
Which countries use CST (China Standard Time)?
CST is used in China, Hong Kong, Macau, Taiwan.
Does CST observe daylight saving time?
No, CST does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about CST?
China uses a single time zone despite spanning 5 geographical zones. In Xinjiang (western China), sunset can be as late as midnight in summer.
Which cities are in the HST timezone?
Major cities in the HST timezone include Honolulu, Hilo, Kailua, Pearl City, Kapolei.
What is the UTC offset for HST?
Hawaii Standard Time (HST) is at UTC-10:00.
What should I know about the HST timezone?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
When is it midnight in Beijing, what time is it in Honolulu?
When it is 12:00 AM (midnight) in Beijing (CST), it is -18h later in Honolulu (HST).
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