Popular Timezone Converters
Instant Conversion
Real-time results as you type
50+ Timezones
All major world timezones covered
Date Handling
Handles day rollover automatically
GMT to IST Conversion Table
The table below shows hourly time conversions from Greenwich Mean Time (GMT) to India Standard Time (IST). IST is +5.5 hours from GMT. Business hours (9 AM - 5 PM) are highlighted in blue for easy scheduling across these time zones.
| GMT | IST | Note |
|---|
About GMT & IST
Greenwich Mean Time (GMT)
UTC Offset: UTC+0
Regions: London, Dublin, Lisbon, Accra
India Standard Time (IST)
UTC Offset: UTC+5.5
Regions: Mumbai, Delhi, Bangalore, Chennai
What time is it now in GMT?
The current time in GMT is
What time is it now in IST?
The current time in IST is
The Greenwich Mean Time (GMT) is -5.5 hours behind India Standard Time (IST).
When to Use Timezone Conversion
Remote Meetings
Schedule calls with international teams across different time zones.
Travel Planning
Know the local time at your destination before you arrive.
Stock Markets
Track market opening and closing times across global exchanges.
Live Events
Never miss a live stream, sports event, or product launch.
Software Development
Coordinate deployments and standups with distributed teams.
International Calls
Call friends and family at appropriate hours across the world.
Frequently Asked Questions
What is the time difference between GMT and IST?
IST is +5.5 hours from GMT. Greenwich Mean Time is UTC+0 and India Standard Time is UTC+5.5.
What regions use GMT?
Greenwich Mean Time (GMT) is used in: London, Dublin, Lisbon, Accra.
What regions use IST?
India Standard Time (IST) is used in: Mumbai, Delhi, Bangalore, Chennai.
Is this timezone converter free?
Yes, our timezone converter is completely free with no registration required. Convert unlimited times between any supported timezones.
Does it handle daylight saving time?
Our converter uses fixed UTC offsets. For daylight saving adjustments, select the appropriate DST variant (e.g., EDT instead of EST during summer months in the US).