New York is 12 hours behind Hong Kong for most of the year: when it is 10:00 am in Hong Kong it is 10:00 pm (previous day) in New York. In offset terms Hong Kong is on UTC+08:00 and New York is on UTC-05:00 in January, and UTC+08:00 and UTC-04:00 in July. The converter above works from your browser’s own time zone data, so the figure it shows is the one in force today rather than the one that was in force when this page was written.
The difference is not constant, because only one of the two cities observes daylight saving. In 2026, Hong Kong does not change at all and New York changes on 8 March and 1 November. That leaves 3 distinct periods in the year, and the table below gives the exact dates. It is the short windows that catch people out: a recurring call booked in one city’s clock silently moves in the other’s.
There is no overlap in office hours at all. Hong Kong works 09:00 to 18:00 and New York works 09:00 to 17:00, and with 12 hours between them one city has closed before the other opens. Anything live has to be early for one side or late for the other; 18:00 to 19:00 in Hong Kong, which is 06:00 to 07:00 in New York, is usually the least painful compromise. Both cities work Monday to Friday, so only the clock has to be reconciled.
Two local details worth knowing. The exchange trades 09:30 to 16:00 with a lunch break, and UTC+08:00 has been fixed since daylight saving was dropped in 1979. The New York Stock Exchange trades 09:30 to 16:00 Eastern, and most of the city arranges its day around that window.
Write the invitation in both clocks. "10:00 Hong Kong / 22:00 New York" removes the ambiguity that abbreviations introduce — Hong Kong alone is read as HKT in winter and HKT in summer, and calendar software will happily convert one into the other without telling you.
The formula
local Hong Kong- The time you enter, on the Hong Kong clock
offset- Each city’s UTC offset at that moment, read live from the IANA time zone database in your browser
−12- The difference in hours that holds for most of 2026: New York is 12 hours behind Hong Kong
day shift- Whether the converted time falls on the previous, same or next calendar day in New York
How it works, step by step
- Enter a time in Hong Kong using the 24-hour hour box and the minute box — 15:30 is hour 15, minute 30.
- Your browser reports the UTC offset in force in Hong Kong and in New York for that moment, so a date near a daylight saving transition is handled correctly rather than with a fixed 12 hour rule.
- The second offset minus the first gives the difference, which is added to the time you entered. A result past midnight is marked as the next or previous day, because that is where most conversion mistakes live.
- The panel also shows the current time in both cities, the date in New York, and whether the two offices are open at the same moment.
Worked examples
09:00 in Hong Kong
09:00 in Hong Kong is 21:00 in New York (previous day) — after the New York working day has finished. In 12-hour terms, 9:00 am against 9:00 pm (previous day). Only one of the two offices is open at that moment, so it is worth offering rather than assuming.
12:00 in Hong Kong
12:00 in Hong Kong is 00:00 in New York — the middle of the night in New York. In 12-hour terms, 12:00 pm against 12:00 am. Only one of the two offices is open at that moment, so it is worth offering rather than assuming.
17:00 in Hong Kong
17:00 in Hong Kong is 05:00 in New York — the middle of the night in New York. In 12-hour terms, 5:00 pm against 5:00 am. Only one of the two offices is open at that moment, so it is worth offering rather than assuming.
The 1 January window, when the usual answer is wrong
Between 1 January and 7 March the difference is -13:00 rather than -12:00, because one city has changed its clocks and the other has not. In that window 10:00 in Hong Kong is 21:00 in New York (previous day), an hour away from where a fixed-offset table would put it.
How to read your score
Frequently asked questions
How many hours behind Hong Kong is New York?
New York is 12 hours behind Hong Kong for most of 2026, so 09:00 in Hong Kong is 21:00 in New York (previous day). The difference changes during the daylight saving changeovers, and the table on this page lists every period in the year with its exact dates.
What is 2 pm Hong Kong time in New York?
2:00 am, the middle of the night in New York. In 24-hour form 14:00 in Hong Kong is 02:00 in New York, and that is outside working hours in New York.
What is the best time to call between Hong Kong and New York?
There is no time when both offices are open, so one side has to step outside its normal hours. The two least disruptive options are 08:00 in Hong Kong, which is 20:00 in New York, or 18:00 in Hong Kong, which is 06:00 in New York.
Is New York ahead of or behind Hong Kong?
New York is behind. Hong Kong is at UTC+08:00 and New York is at UTC-05:00 in mid-January, and UTC+08:00 and UTC-04:00 in mid-July. The clock moves back going from Hong Kong to New York, which is why Hong Kong reaches the end of its working day first.
Do Hong Kong and New York change their clocks on the same date?
No. In 2026, Hong Kong does not change its clocks at all, and New York changes on 8 March 2026 and 1 November 2026. That is why the difference between them takes 2 different values across the year rather than one.
What do the abbreviations for Hong Kong mean?
Hong Kong is on HKT in winter and HKT in summer, while New York uses EST and EDT. Abbreviations are the least reliable way to write a time: several are ambiguous between regions, and the summer and winter forms are an hour apart. A UTC offset, or the time given in both cities, cannot be misread.
Does this converter stay correct after the clocks change?
Yes. It does not use a stored number for the difference. Each time you change a value it asks your browser for the UTC offset that Asia/Hong_Kong and America/New_York are on at that moment, using the IANA time zone database that ships with your operating system, and takes the difference. The tables on this page are computed from the same database for 2026.
Hong Kong to New York: every hour, every period of 2026, and meeting slots
| Hong Kong (24h) | Hong Kong (12h) | New York (24h) | New York (12h) | Status |
|---|---|---|---|---|
| 00:00 | 12:00 am | 12:00 (previous day) | 12:00 pm (previous day) | office hours in New York |
| 01:00 | 1:00 am | 13:00 (previous day) | 1:00 pm (previous day) | office hours in New York |
| 02:00 | 2:00 am | 14:00 (previous day) | 2:00 pm (previous day) | office hours in New York |
| 03:00 | 3:00 am | 15:00 (previous day) | 3:00 pm (previous day) | office hours in New York |
| 04:00 | 4:00 am | 16:00 (previous day) | 4:00 pm (previous day) | office hours in New York |
| 05:00 | 5:00 am | 17:00 (previous day) | 5:00 pm (previous day) | outside office hours |
| 06:00 | 6:00 am | 18:00 (previous day) | 6:00 pm (previous day) | outside office hours |
| 07:00 | 7:00 am | 19:00 (previous day) | 7:00 pm (previous day) | outside office hours |
| 08:00 | 8:00 am | 20:00 (previous day) | 8:00 pm (previous day) | outside office hours |
| 09:00 | 9:00 am | 21:00 (previous day) | 9:00 pm (previous day) | office hours in Hong Kong |
| 10:00 | 10:00 am | 22:00 (previous day) | 10:00 pm (previous day) | office hours in Hong Kong |
| 11:00 | 11:00 am | 23:00 (previous day) | 11:00 pm (previous day) | office hours in Hong Kong |
| 12:00 | 12:00 pm | 00:00 | 12:00 am | office hours in Hong Kong |
| 13:00 | 1:00 pm | 01:00 | 1:00 am | office hours in Hong Kong |
| 14:00 | 2:00 pm | 02:00 | 2:00 am | office hours in Hong Kong |
| 15:00 | 3:00 pm | 03:00 | 3:00 am | office hours in Hong Kong |
| 16:00 | 4:00 pm | 04:00 | 4:00 am | office hours in Hong Kong |
| 17:00 | 5:00 pm | 05:00 | 5:00 am | office hours in Hong Kong |
| 18:00 | 6:00 pm | 06:00 | 6:00 am | outside office hours |
| 19:00 | 7:00 pm | 07:00 | 7:00 am | outside office hours |
| 20:00 | 8:00 pm | 08:00 | 8:00 am | outside office hours |
| 21:00 | 9:00 pm | 09:00 | 9:00 am | office hours in New York |
| 22:00 | 10:00 pm | 10:00 | 10:00 am | office hours in New York |
| 23:00 | 11:00 pm | 11:00 | 11:00 am | office hours in New York |
Computed at a difference of -12 hours, which is the one that holds for most of 2026. During the transition windows in the table below, shift the right-hand columns by an hour.
| Period | Length | Hong Kong offset | New York offset | Difference | Abbreviations |
|---|---|---|---|---|---|
| 01 Jan to 07 Mar | 66 days | UTC+08:00 | UTC-05:00 | -13:00 | HKT / EST |
| 08 Mar to 31 Oct | 238 days | UTC+08:00 | UTC-04:00 | -12:00 | HKT / EDT |
| 01 Nov to 31 Dec | 61 days | UTC+08:00 | UTC-05:00 | -13:00 | HKT / EST |
Every row is read from the IANA time zone database. Short periods appear where one city has changed its clocks and the other has not yet done so.
| Hong Kong | 12-hour | New York | Verdict |
|---|---|---|---|
| 06:00 | 6:00 am | 18:00 (previous day) | Outside both |
| 06:30 | 6:30 am | 18:30 (previous day) | Outside both |
| 07:00 | 7:00 am | 19:00 (previous day) | Outside both |
| 07:30 | 7:30 am | 19:30 (previous day) | Outside both |
| 08:00 | 8:00 am | 20:00 (previous day) | Outside both |
| 08:30 | 8:30 am | 20:30 (previous day) | Outside both |
| 09:00 | 9:00 am | 21:00 (previous day) | After hours in New York |
| 09:30 | 9:30 am | 21:30 (previous day) | After hours in New York |
| 10:00 | 10:00 am | 22:00 (previous day) | After hours in New York |
| 10:30 | 10:30 am | 22:30 (previous day) | After hours in New York |
| 11:00 | 11:00 am | 23:00 (previous day) | After hours in New York |
| 11:30 | 11:30 am | 23:30 (previous day) | After hours in New York |
| 12:00 | 12:00 pm | 00:00 | Too early in New York |
| 12:30 | 12:30 pm | 00:30 | Too early in New York |
| 13:00 | 1:00 pm | 01:00 | Too early in New York |
| 13:30 | 1:30 pm | 01:30 | Too early in New York |
| 14:00 | 2:00 pm | 02:00 | Too early in New York |
| 14:30 | 2:30 pm | 02:30 | Too early in New York |
| 15:00 | 3:00 pm | 03:00 | Too early in New York |
| 15:30 | 3:30 pm | 03:30 | Too early in New York |
| 16:00 | 4:00 pm | 04:00 | Too early in New York |
| 16:30 | 4:30 pm | 04:30 | Too early in New York |
| 17:00 | 5:00 pm | 05:00 | Too early in New York |
| 17:30 | 5:30 pm | 05:30 | Too early in New York |
| 18:00 | 6:00 pm | 06:00 | Outside both |
| 18:30 | 6:30 pm | 06:30 | Outside both |
| 19:00 | 7:00 pm | 07:00 | Outside both |
| 19:30 | 7:30 pm | 07:30 | Outside both |
| 20:00 | 8:00 pm | 08:00 | Outside both |
| 20:30 | 8:30 pm | 08:30 | Outside both |
| 21:00 | 9:00 pm | 09:00 | After hours in Hong Kong |
| 21:30 | 9:30 pm | 09:30 | After hours in Hong Kong |
Office hours taken as 09:00–18:00 in Hong Kong and 09:00–17:00 in New York, which are the customary hours in each city rather than a generic nine to five.