12:00AM CET is 11:00 PM GMT (previous day: January 20, 2026)
Reference Date: January 21, 2026
⚠️ Date Change Alert
This time conversion crosses midnight into a different calendar date. 12:00AM CET on January 21, 2026 becomes 11:00 PM GMT on January 20, 2026.
🕐 Live Current Time
CET (Central European Time)
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GMT (Greenwich Mean Time)
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⏱ Times update every second. Automatically handles DST changes.
📍 Timezone Information
CET (Central European Time)
UTC Offset: +01:00
Used in most parts of Europe and a few North African countries.
GMT (Greenwich Mean Time)
UTC Offset: +00:00
The mean solar time at the Royal Observatory in Greenwich, London.
⏰ Time Difference: 1.0 hours
📊 Quick Reference Conversion Table
Complete CET to GMT time conversion chart (every 2 hours):
| CET Time | GMT Time | Period | Notes |
|---|---|---|---|
| 12:00 AM | 11:00 PM (Jan 20) | night → night | 📅 Date changes |
| 02:00 AM | 01:00 AM | night → night | Same date |
| 04:00 AM | 03:00 AM | night → night | Same date |
| 06:00 AM | 05:00 AM | morning → morning | Same date |
| 08:00 AM | 07:00 AM | morning → morning | Same date |
| 10:00 AM | 09:00 AM | morning → morning | Same date |
| 12:00 PM | 11:00 AM | afternoon → morning | Same date |
| 02:00 PM | 01:00 PM | afternoon → afternoon | Same date |
| 04:00 PM | 03:00 PM | afternoon → afternoon | Same date |
| 06:00 PM | 05:00 PM | evening → evening | Same date |
| 08:00 PM | 07:00 PM | evening → evening | Same date |
| 10:00 PM | 09:00 PM | night → night | Same date |
💡 Practical Tips for CET to GMT Conversions
🌙 Both locations are in typical sleep hours (0:00 and 23:00). Reserve this time for emergency communications only.
💻 Remote work consideration: If you're in CET, avoid scheduling calls at 12:00AM unless your GMT colleagues are comfortable with 11:00 PM calls.
🌍 Interesting Facts About These Timezones
Many international broadcasts and aviation use GMT/UTC as the reference time standard.
GMT is based on the Prime Meridian at 0° longitude, passing through Greenwich, London.
The UK switches to BST (British Summer Time, UTC+1) during Daylight Saving Time.
Ireland also uses GMT, referred to as Irish Standard Time during winter months.
CET is used by over 200 million people across central and western Europe.
🔄 Custom Time Converter
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