11:30PM GMT is 12:30 AM CET (next day: January 22, 2026)
Reference Date: January 21, 2026
⚠️ Date Change Alert
This time conversion crosses midnight into a different calendar date. 11:30PM GMT on January 21, 2026 becomes 12:30 AM CET on January 22, 2026.
🕐 Live Current Time
GMT (Greenwich Mean Time)
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CET (Central European Time)
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⏱ Times update every second. Automatically handles DST changes.
📍 Timezone Information
GMT (Greenwich Mean Time)
UTC Offset: +00:00
The mean solar time at the Royal Observatory in Greenwich, London.
CET (Central European Time)
UTC Offset: +01:00
Used in most parts of Europe and a few North African countries.
⏰ Time Difference: 1.0 hours
📊 Quick Reference Conversion Table
Complete GMT to CET time conversion chart (every 2 hours):
| GMT Time | CET Time | Period | Notes |
|---|---|---|---|
| 12:00 AM | 01:00 AM | night → night | Same date |
| 02:00 AM | 03:00 AM | night → night | Same date |
| 04:00 AM | 05:00 AM | night → morning | Same date |
| 06:00 AM | 07:00 AM | morning → morning | Same date |
| 08:00 AM | 09:00 AM | morning → morning | Same date |
| 10:00 AM | 11:00 AM | morning → morning | Same date |
| 12:00 PM | 01:00 PM | afternoon → afternoon | Same date |
| 02:00 PM | 03:00 PM | afternoon → afternoon | Same date |
| 04:00 PM | 05:00 PM | afternoon → evening | Same date |
| 06:00 PM | 07:00 PM | evening → evening | Same date |
| 08:00 PM | 09:00 PM | evening → night | Same date |
| 10:00 PM | 11:00 PM | night → night | Same date |
💡 Practical Tips for GMT to CET Conversions
🌙 Both locations are in typical sleep hours (23:00 and 0:00). Reserve this time for emergency communications only.
💻 Remote work consideration: If you're in GMT, avoid scheduling calls at 11:30PM unless your CET colleagues are comfortable with 12:30 AM calls.
🌍 Interesting Facts About These Timezones
The European Union headquarters in Brussels coordinates on CET.
GMT was established in 1675 by King Charles II at the Royal Observatory.
GMT is based on the Prime Meridian at 0° longitude, passing through Greenwich, London.
CET is used by over 200 million people across central and western Europe.
The UK switches to BST (British Summer Time, UTC+1) during Daylight Saving Time.
🔄 Custom Time Converter
Convert any time between timezones instantly:
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