Asia/Hong_Kong is an IANA time zone used in Hong Kong. It stays on UTC+8 all year.
Asia/Hong_Kong at a glance
Rules of the Asia/Hong_Kong time zone
No clock changes are scheduled in Asia/Hong_Kong. The last one for daylight saving time was in 1979; since then the offset has been UTC+8 all year.
Recent and upcoming changes in Asia/Hong_Kong
| Date | Change | New offset |
|---|---|---|
| Sunday, April 18, 1976 | Clocks go forward 1 hour: 3:30 AM becomes 4:30 AM | UTC+9 |
| Sunday, October 17, 1976 | Clocks go back 1 hour: 3:30 AM becomes 2:30 AM | UTC+8 |
| Sunday, May 13, 1979 | Clocks go forward 1 hour: 3:30 AM becomes 4:30 AM | UTC+9 |
| Sunday, October 21, 1979 | Clocks go back 1 hour for good: 3:30 AM becomes 2:30 AM | UTC+8 |
Where Asia/Hong_Kong is used
Asia/Hong_Kong is used in Hong Kong. These are the largest cities in our list that follow it.
Asia/Hong_Kong compared with other time zones
Differences change during the year when one side moves to or from daylight saving time, so the table shows January and July separately.
| City | Time now | Difference now | In January | In July |
|---|---|---|---|---|
| New York (United States) | --:-- | 13 h behind | 13 h behind | 12 h behind |
| Los Angeles (United States) | --:-- | 16 h behind | 16 h behind | 15 h behind |
| London (United Kingdom) | --:-- | 8 h behind | 8 h behind | 7 h behind |
| Paris (France) | --:-- | 7 h behind | 7 h behind | 6 h behind |
| Dubai (United Arab Emirates) | --:-- | 4 h behind | 4 h behind | 4 h behind |
| Mumbai (India) | --:-- | 2 h 30 min behind | 2 h 30 min behind | 2 h 30 min behind |
| Singapore | --:-- | Same time | Same time | Same time |
| Tokyo (Japan) | --:-- | 1 h ahead | 1 h ahead | 1 h ahead |
| Sydney (Australia) | --:-- | 3 h ahead | 3 h ahead | 2 h ahead |
| UTC | --:-- | 8 h behind | 8 h behind | 8 h behind |
Other zones on UTC+8 right now
These IANA zones show the same time as Asia/Hong_Kong today. Their clock-change rules may differ.
- Asia/Brunei
- Asia/Irkutsk
- Asia/Kuala_Lumpur
- Asia/Kuching
- Asia/Macau
- Asia/Makassar
- Asia/Manila
- Asia/Shanghai
- Asia/Singapore
- Asia/Taipei
- Asia/Ulaanbaatar
- Australia/Perth
Using Asia/Hong_Kong in software
Store and send the zone as its IANA name, Asia/Hong_Kong, not as a fixed offset. A fixed offset such as UTC+8 gives the wrong result after the next clock change.
Show the current time in Asia/Hong_Kong:
// JavaScript
new Intl.DateTimeFormat('en-GB', { timeZone: 'Asia/Hong_Kong', timeStyle: 'long' }).format(new Date());
# Python
from datetime import datetime
from zoneinfo import ZoneInfo
datetime.now(ZoneInfo('Asia/Hong_Kong'))
// PHP
(new DateTime('now', new DateTimeZone('Asia/Hong_Kong')))->format('c');
# Shell
TZ=Asia/Hong_Kong dateTools for time in Asia/Hong_Kong
- Convert a time to or from Asia/Hong_Kong: pick a date and time and see it in every city on your list.
- Add Hong Kong to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Asia/Hong_Kong and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What is the UTC offset of Asia/Hong_Kong?
UTC+8, all year.
What abbreviation does Asia/Hong_Kong use?
HKT. Abbreviations are not unique, so use the zone name Asia/Hong_Kong in software.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.