01:00PM IST is 07:30 AM GMT
Reference Date: January 21, 2026
🕐 Live Current Time
IST (Indian Standard Time)
--:-- --
GMT (Greenwich Mean Time)
--:-- --
⏱ Times update every second. Automatically handles DST changes.
📍 Timezone Information
IST (Indian Standard Time)
UTC Offset: +05:30
Used throughout India and Sri Lanka.
GMT (Greenwich Mean Time)
UTC Offset: +00:00
The mean solar time at the Royal Observatory in Greenwich, London.
⏰ Time Difference: 5.5 hours
📊 Quick Reference Conversion Table
Complete IST to GMT time conversion chart (every 2 hours):
| IST Time | GMT Time | Period | Notes |
|---|---|---|---|
| 12:00 AM | 06:30 PM (Jan 20) | night → evening | 📅 Date changes |
| 02:00 AM | 08:30 PM (Jan 20) | night → evening | 📅 Date changes |
| 04:00 AM | 10:30 PM (Jan 20) | night → night | 📅 Date changes |
| 06:00 AM | 12:30 AM | morning → night | Same date |
| 08:00 AM | 02:30 AM | morning → night | Same date |
| 10:00 AM | 04:30 AM | morning → night | Same date |
| 12:00 PM | 06:30 AM | afternoon → morning | Same date |
| 02:00 PM | 08:30 AM | afternoon → morning | Same date |
| 04:00 PM | 10:30 AM | afternoon → morning | Same date |
| 06:00 PM | 12:30 PM | evening → afternoon | Same date |
| 08:00 PM | 02:30 PM | evening → afternoon | Same date |
| 10:00 PM | 04:30 PM | night → afternoon | Same date |
💡 Practical Tips for IST to GMT Conversions
✗ Not ideal for meetings: 01:00PM IST falls outside business hours in GMT (7:00 - late night/early morning).
🍽 Lunch time in IST. In GMT, it's 07:30 AM - breakfast time.
✈ Travel tip: Expect 2-3 days of jet lag adjustment when flying between IST and GMT. Arrive well-rested and stay hydrated during your flight.
🌍 Interesting Facts About These Timezones
GMT is based on the Prime Meridian at 0° longitude, passing through Greenwich, London.
GMT was established in 1675 by King Charles II at the Royal Observatory.
The UK switches to BST (British Summer Time, UTC+1) during Daylight Saving Time.
Over 1.4 billion people live in the IST timezone, making it one of the most populous.
Ireland also uses GMT, referred to as Irish Standard Time during winter months.
🔄 Custom Time Converter
Convert any time between timezones instantly:
Your local time (Hyderabad, IST): --:-- --