HKT to EDT
-12hHKT
HKTSOURCEEDT
EDTGreen rows indicate typical business hours (9 AM - 5 PM)
HKT and EDT on the World Map
The map below highlights the HKT (Hong Kong Time) and EDT (Eastern Daylight Time) timezone regions across the globe.
HKT – Hong Kong Time
UTC+08:00Hong Kong Time (HKT, UTC+08:00) is the time zone for Hong Kong, 8 hours ahead of UTC.
- •Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979.
- •HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.
- •The Hong Kong Stock Exchange opens at 09:30 HKT.
- •Hong Kong Time does not change with the seasons, so its gap to other zones is fixed.
EDT – Eastern Daylight Time
UTC-04:00Eastern Daylight Time (EDT) is the daylight saving time observed in the Eastern Time Zone, 4 hours behind UTC.
- •EDT is observed from the second Sunday of March to the first Sunday of November.
- •During EDT, the US East Coast is only 4 hours behind London (instead of 5).
- •Not all EST locations switch to EDT – Panama and Jamaica stay on EST year-round.
Understanding the -12h Gap: HKT vs EDT
HKT runs on Hong Kong Time (HKT) at UTC+08:00. EDT runs on Eastern Daylight Time (EDT) at UTC-04:00. That puts HKT 12 hours behind EDT — a difference of -12h at the current offsets.
In practice, when it is 9:00 AM in HKT it is 9:00 PM in EDT on the previous day. Midnight in HKT is 12:00 PM in EDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
HKT to EDT time conversion table
| HKT (HKT) | EDT (EDT) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | previous day |
| 6:00 AM | 6:00 PM | previous day |
| 7:00 AM | 7:00 PM | previous day |
| 8:00 AM | 8:00 PM | previous day |
| 9:00 AM | 9:00 PM | previous day |
| 12:00 PM | 12:00 AM | same day |
| 3:00 PM | 3:00 AM | same day |
| 5:00 PM | 5:00 AM | same day |
| 6:00 PM | 6:00 AM | same day |
| 9:00 PM | 9:00 AM | same day |
Why people convert HKT to EDT time
- Scheduling a call from HKT to EDT: a 10:00 AM start in HKT lands at 10:00 PM in EDT the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -12h gap: HKT and EDT 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 EDT is 9:00 PM in HKT.
- Booking travel or deliveries: tracking EDT local time against HKT keeps pickup windows and arrival estimates honest across the -12h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM HKT" is unambiguous; "3 PM" across a -12h gap is not.
- With a -12h gap there is no shared 9-to-5 window, so alternate the early start: one week HKT takes the early slot, the next week EDT does.
About HKT (Hong Kong Time)
Hong Kong Time (HKT) is fixed at UTC+08:00 all year and does not observe daylight saving time. Hong Kong last used summer time in 1979 and has kept a single offset since. HKT shares the UTC+08:00 offset with China Standard Time, Singapore Time, Malaysian Time, Philippine Time and Australian Western Standard Time, but is listed separately because Hong Kong maintains its own timekeeping authority. As a major financial centre, Hong Kong's trading hours set the rhythm for markets across Asia, opening at 09:30 HKT which is 01:30 in London and 20:30 the previous evening in New York.
About EDT (Eastern Daylight Time)
Eastern Daylight Time (EDT) is used during the summer months (second Sunday of March to the first Sunday of November) in the Eastern Time Zone. During EDT, clocks are advanced by one hour to take advantage of longer daylight hours. Not all locations in the Eastern Time Zone observe DST – Panama, Jamaica, and most of the Caribbean remain on EST year-round.
Best time to call between HKT and EDT
With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. EDT opens at 9:00 AM EDT, which is 9:00 PM in HKT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
HKT and EDT have no shared working hours because of the -12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
HKT is 12 hours behind EDT (HKT UTC+08:00 → EDT UTC-04:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
HKT
Does not observe DST
EDT
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
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 HKT and EDT?
HKT (HKT, UTC+08:00) is 12 hours behind EDT (EDT, UTC-04:00). The gap is currently -12h.
How do I convert HKT time to EDT time?
Add -12h to HKT local time. For example, 9:00 AM in HKT is 9:00 PM in EDT (previous day).
What time is it in EDT right now?
EDT uses EDT at UTC-04:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -12h offset from HKT.
What is the best time to call EDT from HKT?
There is no shared working-hours window because of the -12h gap. The closest option is 1:00 PM in HKT, which is 1:00 AM in EDT.
Which is behind, HKT or EDT?
HKT is 12 hours behind EDT. When it is 12:00 PM in HKT it is 12:00 AM in EDT.
Does daylight saving time affect the HKT–EDT difference?
Neither zone observes daylight saving time, so the -12h offset between HKT and EDT is fixed all year.
Which other cities share HKT's time zone?
HKT also covers Hong Kong, Kowloon, Tsuen Wan, Sha Tin.
Which countries use HKT, HKT's zone?
HKT is used in Hong Kong SAR.
Is there a day difference between HKT and EDT?
Sometimes. The -12h gap is large enough that 8:00 PM or later in HKT already falls on the in EDT.
What is the time difference between HKT and EDT?
EDT is -12h from HKT.
What timezone is HKT in?
HKT operates on its local timezone.
What timezone is EDT in?
EDT operates on its local timezone.
Which countries use HKT (Hong Kong Time)?
HKT is used in Hong Kong SAR.
Does HKT observe daylight saving time?
No, HKT does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about HKT?
Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979. HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.
Which cities are in the EDT timezone?
Major cities in the EDT timezone include New York City, Washington D.C., Toronto, Miami, Philadelphia, Atlanta, Boston, Montreal.
What is the UTC offset for EDT?
Eastern Daylight Time (EDT) is at UTC-04:00. During daylight saving time, it shifts to EST.
What should I know about the EDT timezone?
EDT is observed from the second Sunday of March to the first Sunday of November. During EDT, the US East Coast is only 4 hours behind London (instead of 5).
When is it midnight in HKT, what time is it in EDT?
When it is 12:00 AM (midnight) in HKT (HKT), it is -12h later in EDT (EDT).
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See every conversion from HKT →·See every conversion from EDT →