GMT to WEST Converter

Category: Time Zone Converters

- June 28, 2025

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Greenwich Mean Time (GMT)

UTC+0 • London, Dublin, Accra

Conversion Settings

Configure your timezone conversion preferences

Auto Convert

Daylight Saving Aware

Show UTC Offset

Western European Summer Time (WEST)

UTC+1 • Lisbon, Porto, Canary Islands

--:--:--

Select a time to convert

Time Difference: --

UTC Offset (GMT): +00:00

UTC Offset (WEST): +01:00

DST Status: --

GMT Time: --

WEST Time: --

Time Format:

Current GMT: --:--:--

Current WEST: --:--:--

🌍 GMT is UTC+0 and never changes. WEST is UTC+1 (summer) and WET is UTC+0 (winter). DST runs from last Sunday in March to last Sunday in October.

GMT to WEST Conversion Guide

What is GMT to WEST Conversion?

GMT to WEST conversion helps you translate time between Greenwich Mean Time and Western European Summer Time zones. GMT is UTC+0 and never changes for daylight saving time. WEST is UTC+1 during summer months (last Sunday in March to last Sunday in October), while WET (Western European Time) is UTC+0 during winter months. The time difference is either 0 hours (GMT = WET) or 1 hour (WEST ahead of GMT).

Time Zone Information

Greenwich Mean Time (GMT): Used in the United Kingdom, Ireland, and parts of West Africa. Always UTC+0 with no daylight saving time adjustments in the GMT zone itself.

Western European Summer Time (WEST): Used in Portugal, Canary Islands, and other Western European regions during summer. UTC+1 from last Sunday in March to last Sunday in October.

Time Difference: WEST is 1 hour ahead of GMT during summer months. During winter, WET (Western European Time) is the same as GMT (UTC+0).

Daylight Saving Time Impact

GMT Zone: Does not observe daylight saving time - remains UTC+0 throughout the year

Western European Zone: Switches between WET (UTC+0) in winter and WEST (UTC+1) in summer

Variable Difference: Time difference changes from 0 hours (winter) to 1 hour (summer) when Western European region observes daylight saving time

Common Conversion Examples

Summer Business Hours

GMT 9:00 AM → WEST 10:00 AM

GMT 5:00 PM → WEST 6:00 PM

1-hour difference during WEST period

Winter Business Hours

GMT 9:00 AM → WET 9:00 AM

GMT 5:00 PM → WET 5:00 PM

Same time during WET period

Meeting Planning

Best GMT Time: 8:00 AM - 5:00 PM

Converts to WEST: 9:00 AM - 6:00 PM

Perfect business hours overlap

Event Scheduling

GMT Midnight: 1:00 AM WEST (summer)

GMT Noon: 1:00 PM WEST (summer)

Easy 1-hour addition in summer

Conversion Tips & Best Practices

• This is one of the simplest timezone conversions - either same time (winter) or add 1 hour (summer)

• DST period runs from last Sunday in March to last Sunday in October in Western Europe

• Perfect for business coordination between UK/Ireland and Portugal/Canary Islands

• GMT never observes daylight saving time, making it a stable reference point

• Portugal and Canary Islands are the main regions using WEST during summer months

• Remember that during winter months, both zones use the same time (GMT = WET)

Convert Between GMT and WEST

Coordinating time between London and Lisbon? This simple GMT to WEST time converter helps you stay on track whether you're planning meetings, scheduling calls, or adjusting event times. With built-in daylight saving awareness and live updating clocks, it’s made for anyone juggling time zones in the UK, Portugal, or across West Africa and the Canary Islands.

Why use a GMT to WEST converter?

It only takes a one-hour mix-up to miss a meeting or show up late to a webinar. During summer months, Lisbon and other Western European locations switch to WEST, which runs one hour ahead of GMT. This calculator figures it out for you, so you don’t have to guess.

Because GMT never changes, it’s often used as a reliable anchor for scheduling. But when you're dealing with time zones that jump an hour forward for summer, like WEST, confusion creeps in. This tool keeps it clean and accurate every time.

Step-by-step: How to use the converter

1. Choose your date and time

Start by selecting a date and a time in the input section. You can use either GMT or WEST as your starting zone, depending on where you are or what time you’re trying to translate from. If you're unsure, press the “Now” button to automatically set it to the current time.

2. Pick your input timezone

There’s a dropdown just below the date and time fields that lets you select either GMT or Western European time (Lisbon time). This tells the tool where your original time is coming from.

3. Hit “Convert Time”

Press the big button with the 🔄 symbol. Instantly, you’ll see the converted time and date on the right side, along with a clear label telling you if it’s WEST or WET (the winter version).

4. Use “Swap” for reverse conversion

If you want to flip things, say, you started with WEST and now want to convert from GMT instead, click the “Swap” button. It switches the zones and recalculates if a time is already selected.

5. Reset or adjust as needed

The “Reset” button clears everything and starts fresh, while “Now” sets your input to the current time based on your selected timezone. You can also toggle between 12-hour and 24-hour formats if that’s how you prefer to see time.

Extra settings that help you stay precise

Daylight saving awareness

The tool automatically checks whether the date you picked falls inside Western Europe’s daylight saving period (last Sunday in March to last Sunday in October). It adjusts the time accordingly, switching between WEST and WET.

Live clock display

Right below the controls, you’ll see live GMT and WEST clocks ticking in real time. Handy for reference, especially if you just need a quick comparison between the current times in those zones.

Toggle for showing UTC offsets

If you want to double-check the math behind the scenes, flip on “Show UTC Offset.” It’ll display whether the zone is currently at +0 or +1 UTC, which can help with more technical scheduling or logging events.

Keyboard shortcuts

If you’re the type who prefers keys over clicks, you’ll like this. Press S to swap zones, N for the current time, R to reset, or F to switch time format. Space or Enter will trigger a conversion if you’re not focused in a field.

One example: Scheduling from Dublin to Lisbon

You’re working in Dublin on GMT and need to set a meeting with someone in Lisbon, which shifts to WEST in summer. You type in 3:00 PM GMT on a July afternoon. The converter instantly shows that’s 4:00 PM in Lisbon. No math. No charts. Just an instant answer.

Skip the guesswork, stay on time

Whether you’re working across countries or just hate second-guessing daylight saving rules, this converter saves you time and stress. It makes it easy to keep everything running smoothly between GMT and WEST, with the kind of clarity that keeps your day moving. Try it next time you’re planning across time zones, and see how much simpler it gets.