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Convert GMT to IST Time - London to Mumbai

Convert Greenwich Mean Time (GMT) to India Standard Time (IST, UTC+5.5) with our professional time zone converter. Designed for international business meetings between London to Mumbai, this tool provides real-time conversion, optimal meeting time suggestions, business hours comparison, and 24-hour conversion tables. Features include live clock displays, meeting scheduler, time zone maps, and daylight saving time handling.

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GMT
Greenwich Mean Time
Current Time
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🇮🇳
IST
India Standard Time
Current Time
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Converted Time
Select a time to convert
Time Difference
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Your Local Time
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UTC Time
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GMT to IST Time Conversion

India Standard Time is 5 hours and 30 minutes ahead of Greenwich Mean Time

Always accurate • Live conversion
6h
difference

GMT to IST Time Conversion Chart

Popular Time Conversions

Complete 24-Hour Conversion

Greenwich Mean Time to India Standard Time full day schedule

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12:00 AM
GMT
5:30 AM
IST
🇮🇳
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1:00 AM
GMT
6:30 AM
IST
🇮🇳
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2:00 AM
GMT
7:30 AM
IST
🇮🇳
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3:00 AM
GMT
8:30 AM
IST
🇮🇳
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4:00 AM
GMT
9:30 AM
IST
🇮🇳
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5:00 AM
GMT
10:30 AM
IST
🇮🇳
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6:00 AM
GMT
11:30 AM
IST
🇮🇳
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7:00 AM
GMT
12:30 PM
IST
🇮🇳
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8:00 AM
GMT
1:30 PM
IST
🇮🇳
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9:00 AM
GMT
2:30 PM
IST
🇮🇳
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10:00 AM
GMT
3:30 PM
IST
🇮🇳
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11:00 AM
GMT
4:30 PM
IST
🇮🇳
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12:00 PM
GMT
5:30 PM
IST
🇮🇳
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1:00 PM
GMT
6:30 PM
IST
🇮🇳
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2:00 PM
GMT
7:30 PM
IST
🇮🇳
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3:00 PM
GMT
8:30 PM
IST
🇮🇳
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4:00 PM
GMT
9:30 PM
IST
🇮🇳
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5:00 PM
GMT
10:30 PM
IST
🇮🇳
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6:00 PM
GMT
11:30 PM
IST
🇮🇳
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7:00 PM
GMT
12:30 AM
IST
(next day)
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8:00 PM
GMT
1:30 AM
IST
(next day)
🇮🇳
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9:00 PM
GMT
2:30 AM
IST
(next day)
🇮🇳
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10:00 PM
GMT
3:30 AM
IST
(next day)
🇮🇳
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11:00 PM
GMT
4:30 AM
IST
(next day)
🇮🇳

Best Meeting Times for GMT and IST

Optimal Collaboration Hours

Best times for GMT ↔ IST meetings and calls

✅ Business hours overlap available

Recommended Meeting Windows

9:00 AM GMT → 2:30 PM IST
Perfect for both time zones
10:00 AM GMT → 3:30 PM IST
Perfect for both time zones
11:00 AM GMT → 4:30 PM IST
Perfect for both time zones

Based on standard business hours (9:00 AM - 6:00 PM) in each time zone

GMT vs IST Time Zone Details

Technical Information & Comparison

Detailed timezone specifications and regional data

🌍

Greenwich Mean Time

Source timezone

UTC Offset 0.0h
Code GMT
Region Universal
Status ✓ Active
🇮🇳

India Standard Time

Target timezone

UTC Offset 5.5h
Code IST
Region India
Status ✓ Active

Frequently Asked Questions

What is the Greenwich Mean Time (GMT) to Indian Standard Time (IST) conversion?

The GMT to IST conversion involves converting Greenwich Mean Time (GMT), which is UTC+0:00, to Indian Standard Time (IST), which is UTC+5:30. This conversion is essential for coordinating schedules across these two time zones.

How many hours is GMT behind IST?

Greenwich Mean Time (GMT) is 5 hours and 30 minutes behind Indian Standard Time (IST). Therefore, when it is noon GMT, it will be 5:30 PM IST on the same day.

How do I convert GMT time to IST time using your online tool?

To convert GMT to IST using our online tool at iformat.io, enter the desired GMT into the input field. The converter automatically calculates and displays the corresponding IST time, making it quick and easy.

What is the best tool to convert GMT to IST?

The best tool to convert GMT to IST is our free online converter at iformat.io. It provides real-time calculations and is user-friendly, ensuring accurate conversions between these two time zones.

What are the typical working hours for scheduling meetings between GMT and IST?

The typical working hours for scheduling meetings between GMT and IST are generally between 8:00 AM and 12:30 PM GMT, which corresponds to 1:30 PM and 6:00 PM IST. This range accommodates working hours in both regions.

Can I use your GMT to IST converter on mobile devices?

Our GMT to IST converter is optimized for mobile devices, including iPhones and Android phones. Through iformat.io, you can easily access it on any device and perform conversions on the go.

How does Daylight Saving Time affect the conversion from GMT?

Greenwich Mean Time (GMT) does not observe Daylight Saving Time; therefore, the offset remains constant throughout the year. This consistency simplifies planning since GMT does not have seasonal changes.
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