Convert GMT to HKT
See the 8-hour difference from Greenwich Mean Time to Hong Kong Time with a live converter, hourly table, and meeting planner.
How GMT to HKT Works
GMT is UTC+0 and HKT is UTC+8, so Hong Kong is 8 hours ahead. Enter any GMT time to convert it instantly to Hong Kong Time.
Hour-by-Hour Comparison Table
Use the visual grid to compare GMT and HKT across each hour of the day. Check working hours quickly and export selected times to ICS or Google Calendar.
Schedule Meetings Accurately
Find overlap times for calls between GMT and Hong Kong with calendar-friendly scheduling tools. Time calculations adjust automatically using the IANA timezone database.
How to Convert GMT to HKT
Open the GMT to HKT converter: Go to https://www.xconvert.com/time-converter/gmt-to-hkt-converter. The page opens with GMT and HKT already set up in the comparison grid, which is useful when you need to line up a London-based schedule with Hong Kong business hours for finance, shipping, legal, or client support work.
Add more comparison cities if your workflow spans multiple offices: Click + Add City and search for cities that commonly sit between or alongside GMT and HKT schedules, such as London, Dublin, or Hong Kong. This helps if you are coordinating a multinational call, comparing UK headquarters timing with a Hong Kong regional office, or planning handoffs across teams working in European and Asian market hours.
Drag across the grid to select a meeting window: Click Select to enter selection mode, then drag across the GMT row to highlight a time range in purple; you can resize it with the left and right handles or move the whole block by dragging the center. For example, selecting 9:00 GMT to 12:00 GMT shows the corresponding HKT window of 17:00 to 20:00, which is practical for late-afternoon to evening coordination in Hong Kong.
Export the selected time for scheduling and sharing: Once a range is selected, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is especially useful when sending a confirmed GMT-to-HKT meeting slot to distributed teams so everyone sees the same appointment in their own local calendar without manual conversion.
Understanding the GMT to HKT Time Difference
GMT is Greenwich Mean Time, UTC+0, and HKT is Hong Kong Time, UTC+8. That means HKT is 8 hours ahead of GMT, so a time in Hong Kong is always later on the clock than the same moment in GMT.
The conversion examples make the difference clear: 9:00 GMT = 17:00 HKT, 12:00 GMT = 20:00 HKT, 15:00 GMT = 23:00 HKT, and 18:00 GMT = 2:00 HKT (next day). The last example is especially important for scheduling because evening time in GMT can already fall into the following calendar day in Hong Kong.
GMT is a standard-time abbreviation, and its DST counterpart is IST. HKT does not observe DST, so the GMT-to-HKT relationship is stable when you are specifically comparing GMT and HKT; if a location switches away from GMT to IST during daylight saving periods, the seasonal difference changes in those months because the zone label is no longer GMT.
GMT is used across countries including the United Kingdom, Ireland, Iceland, Ghana, Senegal, Sierra Leone, Liberia, Mali, Mauritania, Guinea, Guinea-Bissau, Gambia, Togo, Burkina Faso, Ivory Coast, Sao Tome and Principe, Saint Helena, Guernsey, Jersey, and the Isle of Man. HKT is used in Hong Kong, a major global hub for banking, trade, logistics, aviation, and regional headquarters, which is why GMT-to-HKT conversion is common for cross-border operations.
Best Times for Calls and Meetings Between GMT and HKT
Because HKT is 8 hours ahead of GMT, morning hours in GMT map to late afternoon and evening in Hong Kong. Using the standard examples, 9:00 GMT = 17:00 HKT and 12:00 GMT = 20:00 HKT, which creates a practical same-day window for business calls when one side is starting the day and the other is still available before late night.
A particularly workable range is 9:00 GMT to 12:00 GMT, which corresponds to 17:00 HKT to 20:00 HKT. This is often suitable for end-of-day coordination in Hong Kong with teams, clients, or vendors operating on GMT, especially for sectors such as finance, shipping, procurement, and regional management.
Later GMT times become much harder for live meetings. For example, 15:00 GMT = 23:00 HKT, which is already very late in Hong Kong, and 18:00 GMT = 2:00 HKT (next day), which usually pushes the meeting into an impractical overnight slot for Hong Kong participants.
If you need a meeting that stays within conventional office hours on both sides, the most realistic overlap usually sits toward the earlier part of the GMT business day and the later part of the HKT business day. In practical terms, the examples show why teams often target the 9:00 GMT to 12:00 GMT range for live conversations and use email or shared documents for anything that would land near 23:00 HKT or later.
Frequently Asked Questions
What is the time difference between GMT and HKT?
The time difference is 8 hours, with HKT 8 hours ahead of GMT. In practical terms, when the workday is beginning in a GMT location, Hong Kong is already in the late afternoon or evening, which affects when live calls and approvals can happen.
When is 9 AM GMT in HKT?
9:00 GMT = 17:00 HKT. This is one of the most useful conversion points for business users because it places a GMT morning meeting into late afternoon in Hong Kong, often making it suitable for same-day communication.
When is 12 PM GMT in HKT?
12:00 GMT = 20:00 HKT. That means a noon meeting in GMT reaches Hong Kong in the evening, which can still work for urgent coordination but is less ideal for recurring daily meetings.
When is 3 PM GMT in HKT?
15:00 GMT = 23:00 HKT. This is already late at night in Hong Kong, so it is usually better reserved for exceptional calls, incident response, or time-sensitive international matters rather than routine team meetings.
When is 6 PM GMT in HKT?
18:00 GMT = 2:00 HKT (next day). This next-day rollover matters for travel planning, overnight support coverage, and calendar invites, because the Hong Kong participant is no longer on the same calendar date as the GMT participant.
Does the difference between GMT and HKT change during DST?
When comparing GMT to HKT, the stated difference is 8 hours, and HKT does not observe DST. However, GMT is a standard-time abbreviation and its DST counterpart is IST, so during daylight saving months the difference changes if the location is no longer using GMT and is instead operating on IST.
What is the best meeting time between GMT and HKT?
The most practical shared window from the examples is 9:00 GMT to 12:00 GMT, which becomes 17:00 HKT to 20:00 HKT. That range supports real-time collaboration while avoiding the very late Hong Kong hours shown by 15:00 GMT = 23:00 HKT and 18:00 GMT = 2:00 HKT (next day).
Which countries use GMT and which places use HKT?
GMT is used in Burkina Faso, Gambia, Ghana, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Saint Helena, Sao Tome and Principe, Senegal, Sierra Leone, Togo, and the United Kingdom. HKT is used in Hong Kong, which is why this conversion is especially relevant for UK–Hong Kong business, cross-border trade, and regional scheduling.