GMT to GST Converter

Category: Time Zone Converters

- July 07, 2025

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Greenwich Mean Time (GMT)

UTC+0 • London, Dublin, Casablanca

Conversion Settings

Configure your timezone conversion preferences

Auto Convert

Daylight Saving Aware

Show UTC Offset

Show Seconds

Gulf Standard Time (GST)

UTC+4 • Dubai, Abu Dhabi, Muscat

--:--:--

Select a time to convert

Time Difference: --

UTC Offset (GMT): +0

UTC Offset (GST): +4

DST Status: --

GMT Time: --

GST Time: --

Time Format:

Current GMT: --:--:--

Current GST: --:--:--

🌍 GMT is UTC+0 (or UTC+1 during BST). GST is always UTC+4 and never changes.

GMT to GST Conversion Guide

What is GMT to GST Conversion?

GMT to GST conversion helps you translate time between Greenwich Mean Time and Gulf Standard Time. GMT is UTC+0 during standard time and BST is UTC+1 during British Summer Time. GST is always UTC+4 year-round. The time difference varies between 4-5 hours depending on whether GMT or BST is in effect.

Time Zone Information

Greenwich Mean Time (GMT): Used in the UK during standard time (October-March). UTC+0.

British Summer Time (BST): Used during daylight saving time (March-October). UTC+1.

Gulf Standard Time (GST): Used in UAE and Oman. Always UTC+4, no daylight saving time.

Time Difference Variations

GMT Period (Oct-Mar): GST is 4 hours ahead of GMT

BST Period (Mar-Oct): GST is 3 hours ahead of BST

GST Consistency: Gulf countries never observe daylight saving time, so GST remains constant year-round

Common Conversion Examples

Business Hours (GMT to GST)

GMT 9:00 AM → GST 1:00 PM

GMT 5:00 PM → GST 9:00 PM

4-hour difference during standard time

Business Hours (BST to GST)

BST 9:00 AM → GST 12:00 PM

BST 5:00 PM → GST 8:00 PM

3-hour difference during daylight time

International Calls

GMT 2:00 PM → GST 6:00 PM

BST 3:00 PM → GST 6:00 PM

Good overlap for business calls

Flight Schedules

GMT Midnight → GST 4:00 AM

BST Midnight → GST 3:00 AM

Aviation scheduling reference

Conversion Tips & Best Practices

• GST is 4 hours ahead during GMT period (October-March) and 3 hours ahead during BST period (March-October)

• Gulf countries do not observe daylight saving time, making GST calculations consistent year-round

• Best meeting times: GMT/BST 1-4 PM corresponds to GST 4-8 PM (or 5-7 PM during BST)

• Remember that UK switches between GMT and BST, affecting the time difference twice yearly

• GMT covers London, Dublin, and parts of West Africa

• GST covers UAE (Dubai, Abu Dhabi) and Oman (Muscat)

Convert Time Between GMT and GST Instantly

Whether you're scheduling a meeting between London and Dubai or planning travel between Ireland and Oman, this GMT to GST time converter gets the job done quickly and clearly. Right away, here's how the two time zones line up, including all the countries that use them:

GMT (UTC+0)	GST (UTC+4)
🇬🇧 United Kingdom 🇮🇪 Ireland 🇲🇷 Mauritania 🇬🇲 Gambia 🇸🇳 Senegal 🇬🇳 Guinea 🇬🇼 Guinea-Bissau 🇸🇱 Sierra Leone 🇱🇷 Liberia 🇨🇮 Côte d'Ivoire 🇬🇭 Ghana 🇹🇬 Togo 🇧🇫 Burkina Faso 🇲🇱 Mali 🇲🇬 Madagascar (partially) 🇲🇦 Morocco (standard time) 🇩🇿 Algeria (occasionally uses GMT)	🇦🇪 United Arab Emirates 🇴🇲 Oman

Built for Anyone Who Works Across Timezones

This tool is simple at a glance, but there's real thought behind it. It focuses on converting between Greenwich Mean Time (GMT) and Gulf Standard Time (GST), which is especially useful if you’re working with teams, clients, or travel plans involving the UK and Gulf countries. Since these time zones are frequently involved in business, aviation, and global comms, having a tool that adapts to daylight saving changes makes everything smoother.

How It Works, Step by Step

1. Pick your starting point

At the top of the converter, choose a date and time. This is your base time, and it defaults to the current GMT. You can toggle the input to start from GST if needed using the "Swap" button.

2. Select the timezone of your input

There’s a dropdown menu right under the time inputs. Pick whether the time you're entering is GMT or GST. This affects how the conversion works behind the scenes.

3. Conversion happens instantly or manually

By default, the tool auto-converts as soon as you enter or change a value. If you uncheck "Auto Convert," you can make adjustments and hit the "Convert Time" button only when you’re ready.

4. View the results clearly

The output panel shows:

Converted time and date
Time difference (usually 4 hours, sometimes 3 with British Summer Time)
Current UTC offsets
Daylight Saving Time awareness status

5. Optional features for better control

You can adjust the following settings to customize your results:

Auto Convert: On by default, but you can turn it off if you prefer manual control
Daylight Saving Aware: This is crucial for accuracy, since the UK observes BST and the Gulf does not
Show UTC Offset: Adds or hides "+0", "+4" style offset labels
Show Seconds: Toggle to see seconds in your converted time

Quick Use Case: Planning Between Ghana and UAE

Imagine you're in Accra, Ghana (which observes GMT) and you’re setting up a video call with a partner in Dubai (GST). You choose 2:00 PM Ghana time and the converter tells you that’s 6:00 PM in Dubai. This clarity means no miscommunication, no last-minute scrambles, and no missed meetings.

Extra Controls That Make Life Easier

Swap Timezones Instantly

Need to go from GST to GMT instead? Just hit "Swap" and everything flips cleanly, without losing your entered time.

Use the Current Time

Click "Now" to grab your current system time, adjusted to the selected timezone. This is useful when scheduling things that are happening today or within hours.

Reset with a Single Click

If you’re halfway through and need to start over, the "Reset" button puts everything back to default—today’s date, current GMT time, and cleared results.

Switch Between 12 and 24-Hour Formats

Prefer AM/PM or military time? Toggle the format with one tap. The display and output update in real time to match.

Details That Answer Your “What Ifs”

This tool takes care of some of the tricky parts you might not even think of. For example:

If you're converting for a date in July, it knows the UK is on BST and adjusts the time difference accordingly (3 hours instead of 4)
It knows that GST never shifts, even when the UK does
You’ll never accidentally assume the wrong offset, because you can choose to show them right on the screen

Plus, everything runs without needing a reload or page refresh. Every checkbox and button is reactive, which means you see changes immediately as you interact with the tool.

From London to Muscat, This Keeps Your Hours Lined Up

This GMT to GST converter doesn’t just spit out numbers. It adapts to seasonal shifts, shows you both timezones in real time, and helps avoid missteps when time coordination matters most. Whether you're planning flights, meetings, or virtual events across the UK and Gulf, this tool clears the confusion so you can focus on getting things done.