Compare CET and GMT
See the current CET vs GMT time difference, how daylight saving changes the offset, and the best hours to schedule meetings.
How to Find the Time Difference Between CET and GMT
Open the CET vs GMT converter: Go to https://www.xconvert.com/time-converter/cet-vs-gmt to load a comparison grid with CET and GMT already shown as separate rows. This page is useful when you are scheduling a London call from Berlin, coordinating a logistics handoff between Central Europe and the UK, or checking whether a 9:00 AM meeting in Paris lands inside office hours in Greenwich Mean Time locations.
Add relevant comparison cities: Click + Add City and search for cities such as London, Berlin, and Lagos depending on your use case. London is important for UK finance and media, Berlin is a major Central European tech and manufacturing hub, and Lagos often appears in international operations because Nigeria stays on UTC+1 year-round, matching CET in winter but not following European summer clock changes.
Drag across the grid to select a working window: Click Select if needed, then drag across the CET row from 9:00 AM to 12:00 PM CET to highlight that range in purple; the GMT row will show the exact corresponding time as 8:00 AM to 11:00 AM GMT on the same day. This confirms the standard offset of CET being 1 hour ahead of GMT, which matters for sales calls, support coverage, and remote team standups where one side starts work earlier.
Export the selected time for your team: After selecting the range, use the export options shown on the page: ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. For example, a project manager in Madrid can send the Google Calendar event to a UK client, or use Copy to clipboard to paste “10:00 CET / 9:00 GMT” into Slack so everyone sees the agreed slot clearly.
CET vs GMT Offset Explained
Central European Time (CET) is UTC+1, while Greenwich Mean Time (GMT) is UTC+0, so CET is exactly 1 hour ahead of GMT during standard time. That means when it is 9:00 AM CET, it is 8:00 AM GMT; when it is 6:00 PM GMT, it is 7:00 PM CET. This one-hour gap is especially relevant for European business coordination between cities such as Paris, Berlin, Rome, Madrid, and GMT-based locations including parts of the UK in winter.
The seasonal complication is that many places associated with CET do not stay on CET all year. Most of continental Europe switches from CET (UTC+1) to CEST, Central European Summer Time (UTC+2) on the last Sunday in March and returns to CET on the last Sunday in October. In 2026, for example, clocks in much of Central Europe move forward on 29 March 2026 and move back on 25 October 2026, so during that summer period the difference between Central Europe and GMT becomes 2 hours, not 1.
GMT itself does not include daylight saving time because it is a fixed mean solar time reference at UTC+0. However, many users comparing CET to “GMT” are actually thinking about the UK, and the UK changes to British Summer Time (BST, UTC+1) from the last Sunday in March to the last Sunday in October. During that BST period, Central Europe on CEST (UTC+2) remains 1 hour ahead of the UK, even though the labels change from CET/GMT in winter to CEST/BST in summer.
This distinction matters in real scheduling. A winter meeting at 2:00 PM CET = 1:00 PM GMT keeps the same practical one-hour relationship in summer if both regions observe DST normally, becoming 2:00 PM CEST = 1:00 PM BST. Problems happen when invitations are written with the wrong label: saying “CET” in July is technically incorrect for countries like Germany or France, and can cause calendar confusion for airlines, consulting firms, software teams, and cross-border customer support operations.
Frequently Asked Questions
What is the exact time difference between CET and GMT?
CET is 1 hour ahead of GMT during standard time because CET = UTC+1 and GMT = UTC+0. In practical terms, if it is 10:00 AM in CET, it is 9:00 AM in GMT. This is the standard winter relationship used for many comparisons between continental Europe and GMT-based references.
Is CET always 1 hour ahead of GMT?
No, not always in real-world usage across the full year. CET itself is always defined as UTC+1, but many countries that use CET in winter switch to CEST (UTC+2) in summer, which makes them 2 hours ahead of GMT if you are comparing summer local time in those countries to fixed GMT. This is why users should check the date before scheduling recurring meetings.
What happens in summer when comparing Central Europe to GMT?
Most Central European countries move clocks forward on the last Sunday in March and use CEST (UTC+2) until the last Sunday in October. During that period, a city like Berlin or Paris is 2 hours ahead of GMT, so 9:00 AM GMT corresponds to 11:00 AM CEST. If you are planning travel, webinars, or trading-related calls, this seasonal shift can change your preferred meeting window significantly.
Is UK time the same as GMT all year?
No. The UK uses GMT (UTC+0) in winter and BST (UTC+1) in summer, typically from the last Sunday in March to the last Sunday in October. So if you are comparing Germany and the UK, the practical gap is usually 1 hour year-round, but the official labels change seasonally from CET vs GMT in winter to CEST vs BST in summer.
Why do people confuse CET, GMT, UTC, and BST?
These terms are related but not identical. UTC is the global civil time standard, GMT is a time zone at UTC+0, CET is UTC+1, and BST is the UK's summer time at UTC+1. Confusion often happens when people use “GMT” informally to mean “UK time,” even though the UK is not on GMT during summer.
How do I convert 9 AM CET to GMT?
Subtract 1 hour during standard time: 9:00 AM CET = 8:00 AM GMT. If you are actually dealing with a Central European city in summer, that local time may be CEST, not CET, and then 9:00 AM CEST = 7:00 AM GMT. Always verify the date on the converter before sending calendar invites to clients or colleagues.
Which countries commonly use CET in winter?
Countries commonly on CET in winter include Germany, France, Spain, Italy, Belgium, the Netherlands, Poland, Norway, Sweden, and Denmark, among others across continental Europe. Together these countries represent hundreds of millions of people and major sectors such as automotive manufacturing in Germany, luxury goods and aerospace in France, finance in the Benelux region, and shipping and energy across Northern Europe. Their coordination with GMT-based partners is frequent in trade, consulting, aviation, and multinational corporate operations.