Convert SGT to GMT
Compare Singapore Time and Greenwich Mean Time with a live conversion table, meeting planner, and calendar export tools.
How Conversion Works
Convert Singapore Time (SGT, UTC+8) to Greenwich Mean Time (GMT, UTC+0) using an 8-hour time difference. The converter updates automatically so you can map any hour between both zones.
Hour-by-Hour Table
Use the visual grid and hour-by-hour table to compare SGT and GMT across the day. Export selected times with ICS download or send them to Google Calendar and Gmail.
Schedule Meetings Accurately
Find suitable meeting times between Singapore Time and Greenwich Mean Time with shared business-hour overlap. Time data is aligned with the IANA timezone database for accurate offset handling and automatic updates.
How to Convert SGT to GMT
Open the SGT to GMT converter: Go to https://www.xconvert.com/time-converter/sgt-to-gmt-converter to compare Singapore Time (SGT) with Greenwich Mean Time (GMT) on a visual timeline. This page is useful when you need to schedule a call with a Singapore-based operations team while coordinating with colleagues or clients in the United Kingdom, Ghana, or Ireland who work on GMT during standard time.
Add relevant comparison cities: Click “+ Add City” and search for cities that commonly work across these time zones, such as Singapore, London, and Accra. This makes the grid more practical for finance, shipping, technology support, and multinational customer service teams that need to line up office hours between Southeast Asia and GMT countries.
Select a meeting window on the grid: Click “Select” if needed, then drag across the colored timeline in the SGT row to highlight a time range in purple. For example, dragging from 9:00 SGT to 12:00 SGT shows the corresponding GMT times of 1:00 GMT to 4:00 GMT, which quickly confirms that an early Singapore work block lands in the middle of the night or very early morning for GMT-based participants.
Export and share the selected time: After selecting a range, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is especially helpful when a Singapore headquarters team needs to send a confirmed meeting slot to partners across GMT countries so everyone receives the same time block in a format they can add directly to their workflow or calendar.
Understanding the SGT to GMT Time Difference
SGT is UTC+8 and GMT is UTC+0, so GMT is 8 hours behind SGT. The same relationship can also be stated the other way: SGT is 8 hours ahead of GMT. In practical terms, a morning in Singapore maps to very early hours in GMT locations, which is why teams often need to use late afternoon or evening in Singapore for live conversations.
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 even by mid-afternoon in Singapore, GMT locations are still in the morning, which can be useful for cross-border planning between Asian headquarters and European or West African offices.
SGT does not observe DST, so Singapore stays on the same offset year-round. GMT is a standard-time abbreviation, and its daylight saving counterpart is BST, which means the SGT-to-GMT difference applies when the GMT side is specifically on GMT rather than BST. Because of that seasonal switch, the difference does not stay tied to GMT in every month for places such as the United Kingdom and Ireland; it changes during the part of the year when those locations use BST instead of GMT.
GMT is used across a wide geographic range that includes 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. That matters for global coordination because a single SGT schedule may need to support very different business contexts, from London-based legal or media work to logistics, telecom, government, and nonprofit coordination across West Africa.
Best Times for Calls and Meetings Between SGT and GMT
The most workable overlap usually happens when Singapore is later in its business day and GMT locations are entering their morning. Using the provided examples, 15:00 SGT = 7:00 GMT and 18:00 SGT = 10:00 GMT, so the 15:00 to 18:00 SGT window maps to 7:00 to 10:00 GMT. That range is often the most realistic option for live meetings because it avoids the deepest overnight hours on the GMT side while still fitting within a normal or slightly extended workday in Singapore.
Earlier Singapore times are usually much harder for same-day collaboration. For example, 9:00 SGT = 1:00 GMT and 12:00 SGT = 4:00 GMT, which places GMT participants in overnight or pre-dawn hours. That makes early Singapore morning suitable for asynchronous handoffs, emailed updates, and shared project boards rather than live meetings.
For remote teams, this pattern is especially important in industries with daily coordination cycles, such as software development, customer support escalation, freight forwarding, and regional management. A Singapore team can use late afternoon for decision-making calls with GMT-based counterparts, then leave written follow-ups for anything that falls outside the overlap. This reduces delays without forcing either side into a full night-shift schedule.
If your participants are in GMT countries that later switch to BST, meeting habits may need to be adjusted seasonally. Singapore remains fixed on SGT all year, so organizations that work with the United Kingdom or Ireland often need to review recurring meetings when those locations are no longer on GMT. That is particularly relevant for quarterly planning, recurring vendor calls, and support coverage schedules.
Frequently Asked Questions
What is the time difference between SGT and GMT?
GMT is 8 hours behind SGT, and SGT is 8 hours ahead of GMT. Since SGT is UTC+8 and GMT is UTC+0, the gap is substantial enough that a standard morning in Singapore usually falls before the start of the business day in GMT locations.
When is 9 AM SGT in GMT?
9:00 SGT = 1:00 GMT. This means a Singapore morning meeting scheduled at 9 AM lands at 1 AM for teams working on GMT, which is generally too early for live business calls unless someone is covering an overnight shift.
When is 12 PM SGT in GMT?
12:00 SGT = 4:00 GMT. For practical scheduling, that means Singapore lunchtime still falls very early in the GMT day, so it is usually better for sending updates, reports, or handoff notes than for holding a live team meeting.
When is 3 PM SGT in GMT?
15:00 SGT = 7:00 GMT. This is one of the more useful conversion points for international coordination because it begins to approach a workable morning slot for GMT-based participants while still staying within normal afternoon hours in Singapore.
When is 6 PM SGT in GMT?
18:00 SGT = 10:00 GMT. This is often a strong option for real-time meetings between Singapore and GMT countries because it creates a late-afternoon slot in Singapore and a mid-morning slot in GMT, which is easier for both sides to attend.
Does the time difference between SGT and GMT change during DST?
SGT does not observe DST, so Singapore stays on the same offset throughout the year. GMT itself is a standard-time abbreviation, and its daylight saving counterpart is BST, so the SGT-to-GMT relationship applies when the other side is specifically on GMT; in months when places like the United Kingdom or Ireland are on BST instead, the comparison is no longer SGT to GMT.
What is the best meeting time between SGT and GMT?
A practical live-meeting window is often 15:00 to 18:00 SGT, which corresponds to 7:00 to 10:00 GMT using the listed conversions. This range works better than Singapore mornings because 9:00 SGT = 1:00 GMT and 12:00 SGT = 4:00 GMT, both of which are too early for most GMT-based office schedules.
Which countries use SGT and GMT?
SGT is used in Singapore. 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, making this conversion relevant for trade, administration, travel planning, and distributed team communication across Europe and West Africa.