PDT to GMT Converter

Category: Time Zone Converters

- July 01, 2025

| |

Pacific Time (PT)

UTC-8/-7 • Los Angeles, Vancouver, San Francisco, Seattle

Conversion Settings

Configure your timezone conversion preferences

Daylight Saving Aware

Show UTC Offset

Show Details

Greenwich Mean Time (GMT)

UTC+0 • London, Dublin, Lisbon, Reykjavik

--:--:--

Press convert to see result

Time Difference: --

UTC Offset (PT): -08:00

UTC Offset (GMT): +00:00

DST Status: --

PT Time: --

GMT Time: --

Time Format:

Current PT: --:--:--

Current GMT: --:--:--

🌐 PT observes daylight saving time (PDT) from the second Sunday in March to the first Sunday in November. GMT never observes daylight saving time and remains UTC+0 year-round.

PT to GMT Conversion Guide

What is PT to GMT Conversion?

PT to GMT conversion helps you translate time between Pacific Time and Greenwich Mean Time zones. PT alternates between PST (UTC-8) in winter and PDT (UTC-7) in summer. GMT (UTC+0) never changes and remains constant year-round. The time difference varies between 7-8 hours depending on whether Pacific Daylight Time is in effect.

Time Zone Information

Pacific Time (PT): Used in western North America including Los Angeles, San Francisco, Seattle, and Vancouver. Standard time (PST) is UTC-8, daylight time (PDT) is UTC-7.

Greenwich Mean Time (GMT): The time at the Royal Observatory in Greenwich, London. Always UTC+0 with no daylight saving time adjustments. Used as the reference point for world time.

Variable Time Difference: GMT is 8 hours ahead of PST and 7 hours ahead of PDT, making it important to know which Pacific Time is in effect.

Daylight Saving Time Impact

Pacific Time (PST/PDT): Daylight saving runs from the second Sunday in March to the first Sunday in November

Greenwich Mean Time (GMT): Never observes daylight saving time and remains UTC+0 throughout the year

Time Difference Changes: The difference shifts from 8 hours (PST to GMT) in winter to 7 hours (PDT to GMT) in summer

Common Conversion Examples

Summer Time (PDT to GMT)

PDT 9:00 AM → GMT 4:00 PM

PDT 1:00 PM → GMT 8:00 PM

7-hour difference during summer months

Winter Time (PST to GMT)

PST 9:00 AM → GMT 5:00 PM

PST 1:00 PM → GMT 9:00 PM

8-hour difference during winter months

Business Hours Overlap

Best PT Time: 8:00 AM - 10:00 AM

Converts to GMT: 3:00 PM - 5:00 PM (summer)

Limited overlap for international meetings

Evening Coordination

PDT 6:00 PM → GMT 1:00 AM (next day)

PST 6:00 PM → GMT 2:00 AM (next day)

Evening PT is early morning GMT

Conversion Tips & Best Practices

• GMT never changes, making it a stable reference point for international coordination

• Business hours overlap is very limited - best window is PT morning (8-10 AM) to GMT afternoon

• Remember PST becomes PDT in summer, reducing the time difference by 1 hour

• PT covers major tech hubs like Silicon Valley, making this conversion important for global business

• When it's evening in PT, it's already early morning the next day in GMT

• GMT is equivalent to UTC and is used as the basis for all other world time zones

Convert Between Pacific Time and GMT

Trying to schedule a call from San Francisco to London? Planning a trip from Seattle to Dublin? This simple, interactive PT to GMT Time Converter helps you match times across continents without mental math. Whether you're syncing up with teams, family, or live events, having accurate time zones aligned matters.

Pacific Time (UTC-8 / UTC-7)	Greenwich Mean Time (UTC+0)
🇺🇸 United States (California, Washington, Oregon) 🇨🇦 Canada (British Columbia, Yukon) 🇲🇽 Mexico (Baja California)	🇬🇧 United Kingdom 🇮🇪 Ireland 🇵🇹 Portugal 🇮🇸 Iceland 🇬🇲 The Gambia 🇬🇭 Ghana 🇬🇳 Guinea 🇬🇼 Guinea-Bissau 🇨🇮 Côte d'Ivoire 🇱🇷 Liberia 🇲🇱 Mali 🇲🇷 Mauritania 🇲🇦 Morocco* 🇸🇳 Senegal 🇸🇱 Sierra Leone 🇹🇬 Togo 🇧🇫 Burkina Faso

What This Converter Does for You

The tool translates any time you enter from Pacific Time to Greenwich Mean Time or vice versa. It factors in daylight saving, shows the current time in both zones, and gives you options like 12 or 24-hour display. With just a few clicks, you’ll see exactly what time it is across the ocean, all without looking anything up or checking a world clock app.

Where This Comes in Handy

If you're in Vancouver setting up a live interview with a hiring manager in Lisbon, or maybe working remote from Portland while collaborating with folks based in Accra, this tool can shave off confusion and second-guessing. No more misfired meeting links or missed calls just because someone miscalculated the time difference.

Using the Converter Is Simple

Start by Picking a Date and Time

Use the date and time fields to set the time in your current location. You can enter this manually or hit the “Now” button to instantly drop in the current moment.

Choose Your Base Time Zone

By default, it starts in Pacific Time. But if you're in London or another GMT country, use the dropdown to flip the direction. You can also use the “Swap” button to switch which zone you're working from.

Hit Convert

Press the “Convert Time” button and you'll get a clear breakdown. The converted time appears big and bold, with supporting details like:

Full date and time in both zones
Whether daylight saving is active
The UTC offsets involved
Total hours ahead or behind

Extra Features That Make This Tool Smarter

Live Clock

At the bottom, you’ll always see the current time in PT and GMT updating every second. This helps double-check your input against the present moment.

Daylight Saving Awareness

There's a checkbox to account for DST automatically. It's on by default, which is usually what you want. You can turn it off if you're working with fixed UTC offsets or comparing times out of season.

Show or Hide the Details

Some folks just want the answer. Others want to understand what’s happening under the hood. Use the “Show Details” option to display or hide the full breakdown.

Pick Your Time Format

Prefer 24-hour clocks over AM/PM? Click the “12 Hour” button to switch formats instantly. It toggles both the live clocks and the result display.

Start Fresh with a Click

If you've made several changes and just want to reset things, the “Reset” button clears all inputs and restores the default PT → GMT setup.

Common Mistakes the Tool Helps Avoid

Forgetting daylight saving: The time gap isn't always the same. In summer, the difference is 7 hours. In winter, it's 8.
Mixing up PST and PDT: This tool knows the calendar rules and adjusts automatically unless you uncheck DST awareness.
Assuming GMT changes: GMT never shifts. It's fixed at UTC+0, making it a solid reference for comparing other zones.
Confusing time inputs: The built-in date and time pickers reduce user error and ensure clean formatting.

Make Your Cross-Time Planning Effortless

This PT to GMT converter isn’t about bells and whistles. It’s about getting the answer you need without hesitation. Whether you're syncing up a support shift across continents or just trying to catch a live stream without staying up all night by mistake, this calculator keeps things crystal clear. Simple, reliable, and built for your schedule.