Convert EST to GMT
See the 5-hour time difference from EST (UTC-5) to GMT (UTC+0), compare hours side by side, and plan meetings with export tools.
How EST to GMT Works
This converter shows the 5-hour difference between EST (UTC-5) and GMT (UTC+0) and updates results automatically when daylight saving rules affect Eastern Time.
Hour-by-Hour Comparison Table
Use the visual grid and hour-by-hour table to compare EST and GMT across the day. Copy results or export times to ICS, Google Calendar, Gmail, and other calendar apps.
Schedule Meetings Accurately
Find overlapping business hours between Eastern Time and GMT for calls and meetings. DST tracking and the IANA timezone database help keep conversions accurate over time.
How to Convert EST to GMT
Open the EST to GMT converter: Visit https://www.xconvert.com/time-converter/est-to-gmt-converter. The page opens with EST and GMT already set up in the visual comparison grid, which is useful when you need to schedule a call between a New York-based team working on Eastern Standard Time and colleagues in London using Greenwich Mean Time.
Add comparison cities if your schedule involves more regions: Click + Add City and search for cities that commonly work alongside EST and GMT, such as New York, London, or Accra. This helps with practical coordination for finance, media, customer support, and international operations where teams in the United States, United Kingdom, and West Africa may all need to join the same meeting.
Drag to select the meeting window on the grid: Click Select to enter selection mode, then drag across the EST row to highlight a time range in purple, such as 9:00 EST to 12:00 EST. The grid immediately shows the matching GMT range as 14:00 GMT to 17:00 GMT, making it easy to confirm whether a morning meeting in Eastern Standard Time lands inside the afternoon workday for teams on Greenwich Mean Time.
Resize, move, and export the selected time: Drag the left or right handle to adjust the range, or drag the center of the purple block to shift the entire meeting later or earlier in the day. Once selected, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link so a distributed team, client, or travel group can receive the exact EST-to-GMT meeting slot in a format they can use immediately.
Understanding the EST to GMT Time Difference
EST is Eastern Standard Time, UTC-5, while GMT is Greenwich Mean Time, UTC+0. GMT is 5 hours ahead of EST, so when the workday starts in EST, the afternoon is already underway in GMT. For example, 9:00 EST = 14:00 GMT, 12:00 EST = 17:00 GMT, 15:00 EST = 20:00 GMT, and 18:00 EST = 23:00 GMT.
This difference matters for companies that coordinate across North America and the United Kingdom, as well as organizations working with GMT-based locations such as Ghana, Iceland, Ireland, and Senegal. A team using EST may be based in the United States, Canada, the Bahamas, Jamaica, Mexico, Panama, or the Cayman Islands, while GMT is used in places including the United Kingdom, Ireland, Ghana, Iceland, Guinea, Liberia, Mali, Mauritania, and Sierra Leone.
Daylight saving time can change the relationship because EST is the standard-time abbreviation and its daylight-saving counterpart is EDT, while GMT is the standard-time abbreviation and its daylight-saving counterpart is IST. That means the EST-to-GMT difference does not stay fixed year-round when regions switch to their DST counterparts, so the months affected are the periods when Eastern Time is observing EDT and when GMT regions that change clocks are observing IST rather than standard time.
Best Times for Calls and Meetings Between EST and GMT
The most practical overlap usually falls in the EST morning and early afternoon, because that maps to the GMT afternoon and evening. Using the standard conversions on this page, 9:00 EST = 14:00 GMT and 12:00 EST = 17:00 GMT, which creates a strong shared business window for sales calls, project reviews, legal coordination, and agency-client meetings.
A later EST meeting becomes harder for GMT participants because the day shifts into evening quickly. For instance, 15:00 EST = 20:00 GMT, which may still work for urgent handoffs or executive calls, but 18:00 EST = 23:00 GMT is usually too late for normal office hours in the United Kingdom, Ireland, or other GMT locations.
For recurring meetings, a 9:00 EST to 12:00 EST range is often the safest choice because it appears as 14:00 GMT to 17:00 GMT. That window works well for transatlantic teams in banking, consulting, software delivery, publishing, and customer success, where both sides need enough business-day overlap to discuss issues and follow up before close of business.
If you are coordinating support coverage or travel plans, the converter grid is especially useful because you can visually test whether a handoff at 12:00 EST / 17:00 GMT gives enough time for same-day action. It is also helpful for planning live webinars, interviews, and vendor meetings where attendance drops sharply once the GMT side moves past standard office hours.
Frequently Asked Questions
What is the time difference between EST and GMT?
GMT is 5 hours ahead of EST. Because EST is UTC-5 and GMT is UTC+0, a time in Eastern Standard Time converts to a GMT time that is five hours later, such as 12:00 EST = 17:00 GMT.
When is 9 AM EST in GMT?
9:00 EST = 14:00 GMT. This is a common conversion for transatlantic work because a 9 AM start in Eastern Standard Time lands at 2 PM in Greenwich Mean Time, which is still well within the business day for teams in the United Kingdom, Ireland, Ghana, or Iceland.
When is 12 PM EST in GMT?
12:00 EST = 17:00 GMT. That makes noon in EST a practical late-afternoon slot in GMT, often used for client updates, recruiting interviews, and cross-border operations meetings that need both sides online during normal office hours.
Does the difference between EST and GMT change during DST?
Yes, it can change during daylight saving periods because EST is the standard-time abbreviation and EDT is its DST counterpart, while GMT is the standard-time abbreviation and IST is its DST counterpart. The 5-hour EST-to-GMT difference applies when both sides are on their standard-time labels shown here, but the relationship changes during the months when either side is using its daylight-saving counterpart.
What is the best meeting time between EST and GMT?
A strong meeting window is typically 9:00 EST to 12:00 EST, which corresponds to 14:00 GMT to 17:00 GMT. This range gives EST teams a morning slot and GMT teams an afternoon slot, making it effective for recurring business calls, remote team standups, and client-facing meetings without pushing the GMT side too far into the evening.
Is 3 PM EST too late for GMT meetings?
15:00 EST = 20:00 GMT, so it is already evening in GMT. That can still work for urgent project escalations, executive briefings, or one-off deadlines, but it is usually less suitable for routine meetings where participants in London or other GMT locations are expected to join during standard work hours.
Is 6 PM EST a good time for a call with GMT?
18:00 EST = 23:00 GMT, which is very late in the day for GMT participants. This time is generally not ideal for normal business meetings, though it may be used for emergency operations, overnight support coordination, or situations where the EST side has no earlier availability.
Which countries use EST and which use GMT?
EST is used in countries and territories including the Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, and the United States. 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.