CET to GMT Converter
Understanding CET and GMT Time Zones
Central European Time (CET)
Central European Time is observed in undefined and uses the offset UTC+1. Major cities in this time zone include Paris, Berlin, Rome, Madrid. This time zone covers parts of Europe and/or Africa, home to major financial and cultural centers.
Greenwich Mean Time (GMT)
Greenwich Mean Time operates at UTC+0, covering undefined. Key cities include London, Dublin, Lisbon. The 1-hour backward offset from CET means that when professionals in Paris start their workday at 9:00 AM, it is already 8:00 AM in London.
CET is also commonly referred to as Europe time, European time, Paris time, Berlin time, EU time. GMT is also known as London time, UK time, British time, England time. So if you are searching for Europe time to London time, this is the same conversion as CET to GMT.
Complete CET to GMT Conversion Table
The table below shows every two-hour increment converted from Central European Time to Greenwich Mean Time. Business hours (9 AM – 5 PM) are highlighted for easy scheduling reference.
| CET (Central European Time) | GMT (Greenwich Mean Time) |
|---|---|
| 12:00 AM (00:00) | 11:00 PM (23:00) (previous day) |
| 2:00 AM (02:00) | 1:00 AM (01:00) |
| 4:00 AM (04:00) | 3:00 AM (03:00) |
| 6:00 AM (06:00) | 5:00 AM (05:00) |
| 8:00 AM (08:00) | 7:00 AM (07:00) |
| 10:00 AM (10:00) | 9:00 AM (09:00) |
| 12:00 PM (12:00) | 11:00 AM (11:00) |
| 2:00 PM (14:00) | 1:00 PM (13:00) |
| 4:00 PM (16:00) | 3:00 PM (15:00) |
| 6:00 PM (18:00) | 5:00 PM (17:00) |
| 8:00 PM (20:00) | 7:00 PM (19:00) |
| 10:00 PM (22:00) | 9:00 PM (21:00) |
Times shown in 12-hour and 24-hour format. Last updated 2026-03-09.
Scheduling Between CET and GMT
Remote teams spanning Paris and London often adopt asynchronous practices to bridge the 1-hour gap. Tools like Slack, Loom, and Notion reduce the need for real-time overlap while keeping projects moving forward.
The small 1-hour gap between CET and GMT means that most of the business day overlaps, making real-time collaboration straightforward. Morning meetings in CET align well with early morning schedules in GMT.
Travel Between Paris and London
When arriving in London from Paris, immediately set all devices to local time. Exposure to natural daylight at the destination helps reset your circadian rhythm. Westbound travelers should seek afternoon light.
Medical experts recommend allowing approximately one day of adjustment per hour of time difference. For the 1-hour shift between CET and GMT, plan for a quick adjustment of 1–2 days.
Daylight Saving Time Considerations
Keep in mind that DST transition dates differ between regions. The US changes clocks in March and November, Europe in March and October, and Australia in April and October. This can cause temporary shifts in conversion results.
For the CET to GMT conversion specifically: CET (UTC+1) and GMT (UTC+0) both observe DST. When both zones transition on different dates, the offset temporarily shifts by one hour for a few weeks. Always verify during March–April and October–November.
Related Time Zone Conversions
References & Resources
Frequently Asked Questions
CET (Central European Time) is 1 hour ahead of GMT (Greenwich Mean Time). CET is UTC+1 and GMT is UTC+0.
When it is 12:00 PM (noon) in CET, it is 11:00 AM in GMT.
The best overlap for business hours is approximately 8:00 AM to 4:00 PM GMT, which corresponds to 9:00 AM to 5:00 PM in CET.
Keep in mind that DST transition dates differ between regions. The US changes clocks in March and November, Europe in March and October, and Australia in April and October. This can cause temporary shifts in conversion results.