Compare IST vs GMT
See the current IST and GMT offset, check how DST affects the comparison, and find practical meeting times across both zones.
IST GMT Time Difference
IST is 5 hours 30 minutes ahead of GMT year-round. Use this page to view the live time gap and compare hours side by side.
DST Impact on GMT
IST does not observe daylight saving time, while GMT-related regions may switch to BST in summer. The page tracks these changes automatically using the IANA timezone database.
Best Meeting Time Finder
Use the visual comparison grid and hour-by-hour table to spot overlapping work hours. Export selected times with ICS download or share via Google Calendar and Gmail.
How to Find the Time Difference Between IST and GMT
Open the IST vs GMT page: Visit
https://www.xconvert.com/time-converter/ist-vs-gmtto load a visual comparison grid with IST and GMT already shown as separate rows. This is useful when you need to schedule a call between a team in India and contacts working on GMT, such as UK-based operations, West African partners, or international support teams using GMT as a reference.Add relevant comparison cities: Click + Add City and search for cities that matter to your schedule, such as London, Dublin, or Accra if you are coordinating finance, logistics, customer support, or cross-border project work. Adding these rows lets you compare IST against GMT-based locations and nearby business hubs in one screen, which is especially helpful for remote teams handling handoffs between India and Europe or Africa.
Drag to select a meeting window: Click Select to enter selection mode, then drag across the IST 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, if you drag from 9:00 IST to 12:00 IST, the grid will show the matching GMT times as 4:00 GMT to 7:00 GMT, making it immediately clear that an India morning meeting lands very early in the GMT day.
Export and share the selected time: After selecting a range, use the export options to send it by ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is practical for sending a confirmed meeting slot to a distributed team, sharing a client call window with recruiters or vendors, or making sure everyone sees the event in their own calendar without rechecking the time difference manually.
IST vs GMT Offset Explained
IST is UTC+5 and GMT is UTC+0, so GMT is 5 hours behind IST. In practical terms, when it is 9:00 IST, it is 4:00 GMT, and when it is 18:00 IST, it is 13:00 GMT. This fixed comparison is useful for planning recurring meetings, support coverage, and delivery deadlines between India and GMT-based regions.
The difference matters most during normal business hours. A 12:00 IST work check-in matches 7:00 GMT, while 15:00 IST matches 10:00 GMT, which is often a more realistic overlap for teams working standard office hours in both regions. For outsourcing, software development, consulting, and back-office operations, this makes late-morning or afternoon IST the most practical time for live collaboration with GMT contacts.
Seasonal naming can create confusion because both abbreviations have DST counterparts that use similar letters in different regions. IST is a standard-time abbreviation; its DST counterpart is IDT, while GMT is a standard-time abbreviation; its DST counterpart is IST. This means travelers, recruiters, and remote teams should pay close attention to the exact abbreviation shown on the schedule, especially when working with Ireland, Israel, or the United Kingdom, where seasonal clock changes can affect how local time is labeled.
Country coverage also explains why these abbreviations appear in different contexts. IST is used in India, Ireland, and Israel, while 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. If you are booking calls across multinational teams, this matters because the same abbreviation may refer to different places and seasonal rules depending on the country.
Frequently Asked Questions
What is the time difference between IST and GMT?
IST is UTC+5 and GMT is UTC+0, so GMT is 5 hours behind IST. A simple way to use this is to compare known examples: 9:00 IST = 4:00 GMT and 15:00 IST = 10:00 GMT. This is especially helpful when scheduling meetings between India-based teams and GMT-based offices in the UK or West Africa.
Is IST ahead of GMT or behind GMT?
IST is ahead of GMT, and GMT is 5 hours behind IST. That means the IST workday starts much earlier from the perspective of someone following GMT, so an India morning call may fall before standard office hours in a GMT-based location. For example, 12:00 IST = 7:00 GMT, which can be too early for some business meetings unless both sides agree to an early start.
What is 9 AM IST in GMT?
9:00 IST = 4:00 GMT. This is a useful reference point for teams in India that begin work early and need to understand whether a same-day handoff to a GMT-based team is realistic. In most cases, 9 AM IST is still very early in the GMT day, so it is better suited to asynchronous updates than live calls.
What is 12 PM IST in GMT?
12:00 IST = 7:00 GMT. This can work for urgent coordination, early-shift customer support, or operations teams that start before standard office hours, but it is still early for many GMT-based business users. If you need broader attendance, a later IST slot often produces a better overlap.
What is 3 PM IST in GMT?
15:00 IST = 10:00 GMT. This is one of the most practical conversion points for real business use because it places both sides within typical working hours. For software delivery reviews, agency-client calls, and vendor coordination, this window usually offers a better balance than early IST morning slots.
What is 6 PM IST in GMT?
18:00 IST = 13:00 GMT. This timing often works well for final-day updates, commercial discussions, and project reviews because it falls in the early afternoon for GMT participants. The tradeoff is that it pushes the meeting toward the end of the day in India, which may matter for teams with fixed office closing times.
Does daylight saving time affect IST and GMT comparisons?
Yes, seasonal time labels can affect how people interpret the abbreviations, even though this page compares IST and GMT directly. IST is a standard-time abbreviation; its DST counterpart is IDT, and GMT is a standard-time abbreviation; its DST counterpart is IST. This is why calendar invites and meeting notes should always use the exact zone label shown, particularly when working with Ireland, Israel, or the United Kingdom.
Which countries use IST and which countries use GMT?
IST is used in India, Ireland, and Israel. 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 broad GMT footprint makes it common in international shipping, government coordination, aviation references, and multinational business scheduling.
Why do IST and GMT cause confusion in international scheduling?
The main issue is that the abbreviations are short, reused in different countries, and affected by seasonal naming changes. IST can refer to different regional contexts, and GMT also interacts with seasonal clock changes in countries such as the United Kingdom and Ireland. For recruiters, remote managers, and travelers, using a visual grid instead of reading abbreviations alone helps prevent missed calls and incorrect calendar bookings.