GMT to IST Converter

Category: Time Zone Converters

- July 01, 2025

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Need a Different Conversion?

This tool is specific for GMT to IST. For any other cities or time zones around the world, use our flexible Universal Time Zone Converter.

Greenwich Mean Time (GMT)

UTC+0 • London, Dublin, Accra

Conversion Settings

Configure your timezone conversion preferences

Auto Convert

Daylight Saving Aware

Show UTC Offset

India Standard Time (IST)

UTC+5:30 • Mumbai, Delhi, Bangalore

--:--:--

Select a time to convert

Time Difference: --

UTC Offset (GMT): +00:00

UTC Offset (IST): +05:30

DST Status: --

GMT/BST Time: --

IST Time: --

Time Format:

Current GMT: --:--:--

Current IST: --:--:--

🌍 GMT changes to BST (UTC+1) during daylight saving. IST is always UTC+5:30 with no daylight saving changes.

GMT to IST Conversion Guide

What is GMT to IST Conversion?

GMT to IST conversion helps you translate time between Greenwich Mean Time and India Standard Time zones. GMT is UTC+0 in winter and becomes BST (UTC+1) during daylight saving time from March to October. IST is always UTC+5:30 and never changes for daylight saving time.

Time Zone Information

Greenwich Mean Time (GMT): Used in the UK, Ireland, and several African countries including London, Dublin, and Accra. UTC+0 in winter, becomes BST (UTC+1) during daylight saving.

India Standard Time (IST): Used throughout India including Mumbai, Delhi, Bangalore, and Kolkata. Always UTC+5:30 with no daylight saving time adjustments.

Time Difference: IST is typically 5 hours and 30 minutes ahead of GMT, or 4 hours and 30 minutes ahead of BST during daylight saving time.

Daylight Saving Time Impact

Winter Period (GMT): October to March - IST is 5 hours 30 minutes ahead of GMT

Summer Period (BST): March to October - IST is 4 hours 30 minutes ahead of BST

India Time: No daylight saving time changes - always UTC+5:30 year-round

Common Conversion Examples

Business Hours (Winter)

GMT 9:00 AM → IST 2:30 PM

GMT 5:00 PM → IST 10:30 PM

5 hours 30 minutes time difference during GMT period

Business Hours (Summer)

BST 9:00 AM → IST 1:30 PM

BST 5:00 PM → IST 9:30 PM

4 hours 30 minutes time difference during BST period

Meeting Planning

Best GMT Time: 9:00 AM - 12:30 PM

Converts to IST: 2:30 PM - 6:00 PM

Optimal for both business hours

Event Scheduling

GMT Midnight: 5:30 AM IST

GMT Noon: 5:30 PM IST

Perfect for UK-India coordination

Conversion Tips & Best Practices

• Always check if UK time is observing GMT or BST when scheduling

• IST doesn't change - it's always 5 hours 30 minutes ahead of UTC throughout the year

• Business meetings work best when GMT is morning hours (9 AM-12:30 PM) for IST afternoon

• India uses a half-hour offset, making it unique among major time zones

• Use 24-hour format to avoid AM/PM confusion when scheduling internationally

• GMT transitions to BST on the last Sunday in March at 1:00 AM

Convert GMT and IST

Whether you're planning a meeting between India and the UK or just trying to figure out what time your friend is waking up in London, this GMT to IST time converter is built to make that easier. Here’s a quick reference for the countries that follow these time zones:

Greenwich Mean Time (GMT) 🌍	India Standard Time (IST) 🇮🇳
🇬🇧 United Kingdom 🇮🇪 Ireland 🇬🇭 Ghana 🇸🇱 Sierra Leone 🇬🇲 The Gambia 🇱🇷 Liberia 🇹🇬 Togo 🇨🇮 Côte d'Ivoire 🇧🇫 Burkina Faso 🇲🇱 Mali 🇬🇳 Guinea 🇬🇼 Guinea-Bissau 🇸🇳 Senegal 🇲🇷 Mauritania 🇲🇦 Western Sahara (partially) 🇵🇹 Portugal (Azores excluded) 🇮🇸 Iceland	🇮🇳 India 🇱🇰 Sri Lanka

What This Converter Actually Does

This tool takes the time and date you enter in either GMT or IST and instantly shows what it translates to in the other timezone. It even adjusts for Daylight Saving Time if you want it to, meaning you won't have to calculate whether the UK is currently one hour ahead or not. IST doesn’t follow DST, which keeps things predictable on the India side.

How to Use It Without Guessing

Pick a Time and a Side

Start by choosing whether you're entering a time in GMT/BST or IST. Use the dropdown menu labeled "Input Timezone" to switch between them.

Set Your Date and Time

You’ll see input fields for both date and time. Plug in whatever time you're trying to convert, like 3:00 PM on July 12.

Tap the Convert Button

Click "Convert Time" and you’ll instantly see what that time means on the other end. The converted result shows both the time and date in full clarity, with optional UTC offsets if you want those displayed too.

It Handles the Hard Parts for You

Here’s where the real power of this converter kicks in. If you check the “Daylight Saving Aware” box, the tool will detect if BST (British Summer Time) is in effect. This is usually from the last Sunday in March until the last Sunday in October. If it is, the UK time will shift to UTC+1, and the tool will adjust the result accordingly.

You can also enable “Auto Convert,” which means every time you update the date or time, the conversion happens automatically without clicking anything.

There’s also a “Show UTC Offset” checkbox. If you care about how far the two zones are from Coordinated Universal Time, this shows you at a glance. Example: +00:00 for GMT, +05:30 for IST.

Get the Time Right, Live

Live clocks show current time in both zones, right at the bottom. These update every second, so even if you’re just curious what time it is in India right now, you don’t have to type anything in.

Extra Shortcuts If You’re in a Rush

The “Now” button fills in the current date and time automatically. The “Swap” button flips your input and output zones if you want to reverse your conversion direction. And the “Reset” button clears everything out and puts you back to default GMT mode.

You can also switch between 12-hour and 24-hour formats using the “Time Format” toggle. That’s especially useful if you hate doing mental math on whether 13:00 means 1 PM.

Real-Life Example: Planning Between Ghana and India

Imagine you’re running a virtual event between Accra 🇬🇭 and Mumbai 🇮🇳. Accra runs on GMT year-round, and Mumbai follows IST. You set the meeting at 10:00 AM GMT. With one click, this converter tells you that it’s 3:30 PM in India, which keeps everyone on the same page with no confusion over summer shifts or half-hour offsets.

Stay in Sync Between the UK and India, Anytime

This converter exists for people who don’t want to guess, check maps, or flip through calendar Tools to figure out what time it is across two continents. Whether it’s business hours or catching up with someone abroad, it keeps the math out of your way and lets you move forward with whatever matters next.