Convert SGT to GMT
Compare Singapore Time and Greenwich Mean Time, check the 8-hour difference, and find the best times to schedule calls or meetings.
How SGT to GMT Works
SGT is UTC+8 while GMT is UTC+0, so GMT is 8 hours behind Singapore Time. Enter any time in SGT to instantly convert it to the corresponding GMT time.
Hour-by-Hour Time Table
Use the visual hour-by-hour comparison table to match SGT and GMT across the day. Scan working hours quickly and export selected times to ICS or Google Calendar.
Schedule Meetings Accurately
Find overlapping business hours between SGT and GMT for calls, events, and remote meetings. Time calculations adjust automatically using the IANA timezone database for reliable results.
How to Convert SGT to GMT
Open the SGT to GMT converter: Go to https://www.xconvert.com/time-converter/sgt-to-gmt-converter. The page opens with Singapore Time and Greenwich Mean Time aligned on a visual 24-hour comparison grid, which is useful when you are scheduling a call from Singapore with colleagues in London, Dublin, Accra, or other GMT-based locations.
Add comparison cities for your workflow: Click + Add City and search for cities that matter to your schedule, such as Singapore, London, or Accra. This is especially helpful for finance, shipping, legal, and remote support teams that need to coordinate work between Southeast Asia and GMT-based markets including the United Kingdom, Ghana, and Ireland.
Drag to select the meeting window: Click Select to enable selection mode, then drag across the grid to highlight a time range in purple. For example, if you drag across 9:00 SGT to 12:00 SGT, the grid shows 1:00 GMT to 4:00 GMT, which quickly confirms that a Singapore morning meeting lands in the very early GMT hours and may not suit a standard office schedule.
Export and share the result: After selecting a range, use the export options shown on the page: ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is practical when a Singapore operations team needs to send a confirmed handoff window to partners in the UK or West Africa so everyone receives the same meeting block in their own calendar system.
Understanding the SGT to GMT Time Difference
SGT is Singapore Time, UTC+8, while GMT is Greenwich Mean Time, UTC+0. That means GMT is 8 hours behind SGT, so when the workday begins in Singapore, it is still much earlier in GMT locations.
The conversion examples make the gap easy to apply in real scheduling. 9:00 SGT = 1:00 GMT, 12:00 SGT = 4:00 GMT, 15:00 SGT = 7:00 GMT, and 18:00 SGT = 10:00 GMT. These examples show that much of Singapore’s daytime overlaps with overnight or very early morning hours in GMT.
SGT does not observe daylight saving time, so Singapore stays on the same offset all year. GMT itself is a standard-time abbreviation, and its daylight-saving counterpart is IST, which means the SGT-to-GMT difference applies during the months when locations are actually on GMT; when those places switch to IST, the relationship changes because they are no longer using GMT.
GMT is used across a wide geographic range, including the United Kingdom in standard time as well as Ghana, Iceland, Senegal, Sierra Leone, Togo, Liberia, Guinea, Guinea-Bissau, Mali, Mauritania, Burkina Faso, Gambia, Sao Tome and Principe, Saint Helena, Ivory Coast, Guernsey, Jersey, Isle of Man, and Ireland in standard time. For businesses operating across these regions, the 8-hour gap is large enough that same-day collaboration usually works best at one side’s late afternoon and the other side’s early morning.
Best Times for Calls and Meetings Between SGT and GMT
The examples show that the most realistic overlap happens toward the end of the Singapore workday and the start of the GMT workday. For instance, 15:00 SGT = 7:00 GMT and 18:00 SGT = 10:00 GMT, so a late-afternoon slot in Singapore maps to early morning in GMT-based locations.
This pattern is useful for teams handling cross-border operations, customer support escalation, shipping coordination, and executive check-ins between Singapore and the United Kingdom or West Africa. A Singapore team that can meet between 15:00 and 18:00 SGT reaches GMT participants between 7:00 and 10:00 GMT, which is far more practical than trying to meet during the Singapore morning, when 9:00 SGT = 1:00 GMT and 12:00 SGT = 4:00 GMT.
If both sides need a meeting inside normal office hours, the overlap is limited and usually favors late Singapore afternoons. This is why many distributed teams place handoff meetings, market briefings, or daily status calls near 18:00 SGT / 10:00 GMT, when GMT participants are starting their day and Singapore participants are wrapping up theirs.
Frequently Asked Questions
What is the time difference between SGT and GMT?
SGT is 8 hours ahead of GMT, which means GMT is 8 hours behind Singapore Time. In practical terms, a daytime hour in Singapore often falls in the night or very early morning in GMT, so meeting planning usually needs careful coordination.
When is 9 AM SGT in GMT?
9:00 SGT = 1:00 GMT. This is a useful example because it shows that a standard morning meeting in Singapore is usually too early for most GMT-based teams working regular office hours.
When is 12 PM SGT in GMT?
12:00 SGT = 4:00 GMT. For companies coordinating between Singapore and GMT locations, this means a Singapore lunchtime call still reaches GMT participants before a typical business day starts.
When is 3 PM SGT in GMT?
15:00 SGT = 7:00 GMT. This is one of the more workable conversion points for international teams, because it lets Singapore meet in the afternoon while GMT participants join in the early morning.
When is 6 PM SGT in GMT?
18:00 SGT = 10:00 GMT. This is often one of the best options for live meetings, especially for business discussions with teams in the United Kingdom, Ghana, or Ireland during periods when they are observing GMT.
Does the difference between SGT and GMT change during DST?
SGT does not observe daylight saving time, so Singapore remains on UTC+8 throughout the year. GMT is a standard-time abbreviation, and its daylight-saving counterpart is IST, so the SGT-to-GMT difference applies during the part of the year when a location is on GMT; during DST months, those places are using IST instead of GMT.
What is the best meeting time between SGT and GMT?
The most practical meeting window is usually late afternoon in Singapore, based on the examples 15:00 SGT = 7:00 GMT and 18:00 SGT = 10:00 GMT. That range gives GMT-based participants an early start while avoiding the very difficult overnight times created by Singapore morning meetings such as 9:00 SGT = 1:00 GMT.
Which countries use GMT?
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. This makes GMT relevant not just for London scheduling, but also for trade, nonprofit, logistics, and government coordination across West Africa, Atlantic islands, and the British Isles.