GMT to IST Time Zone Converter — Time Difference Between Reykjavik and Colombo
Drag the slider or click the time display to type a specific hour and instantly convert GMT to IST. The time difference between Reykjavik and Colombo is 5:30 hours — Colombo (IST) is ahead of Reykjavik (GMT) (UTC+0:00 vs UTC+5:30); for example, 9:00 AM GMT = 2:30 PM IST; to convert, add 5:30 hours. Use this GMT to IST time zone converter to check the live current time in both cities, browse the 24-hour GMT to IST conversion table, plan international meetings, find the best overlap hours, and account for daylight saving time changes automatically.
GMT
Greenwich Mean Time
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IST
India Standard Time
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GMT to IST Time Zone Difference — Hour-by-Hour Conversion Table
Scan each row to convert any GMT time to IST and find the exact time difference between Reykjavik and Colombo hour by hour. Amber-highlighted rows mark standard daytime business hours, making it easy to spot overlapping work windows for scheduling international meetings or remote team calls. Tap the arrows to jump between days, click "Today" to reset, and all daylight saving time transitions are handled automatically.
| GMT (Reykjavik) | IST (Colombo) |
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What Time Is It Now in Reykjavik?
Live current local time in Reykjavik, Iceland — GMT (UTC+0:00). Updates every second.
What Time Is It Now in Colombo?
Live current local time in Colombo, Sri Lanka — IST (UTC+5:30). Updates every second.
GMT to IST Quick Reference
Common business hours in Reykjavik converted to Colombo local time — handy for scheduling video calls, client meetings, and international conference calls.
GMT & IST Meeting Planner — Best Overlapping Hours
Use the color-coded conversion table above to find overlapping business hours between Reykjavik and Colombo. Amber rows mark standard daytime work hours (8 AM–6 PM local time) — pick a slot that falls in amber on both sides for a meeting time that works for everyone. Since GMT (UTC+0:00) is 5:30 hours ahead of IST (UTC+5:30), this time zone meeting planner is ideal for scheduling international calls, remote team standups, and cross-border project syncs.
Why Trust This Reykjavik to Colombo Time Zone Converter?
ConvertFlash uses the IANA Time Zone Database — the same authoritative source that powers your phone, browser, and every major operating system — so every Reykjavik to Colombo conversion handles daylight saving time transitions, half-hour UTC offsets, and historical time zone changes automatically. The live world clock updates every second, and the hour-by-hour conversion table regenerates correctly for any past or future date you select, making it reliable for both real-time checks and advance international scheduling.
GMT — Greenwich Mean Time
Reykjavik, Iceland — UTC offset UTC+0:00
- Abbreviation
- GMT
- UTC Offset
- UTC+0:00
- City
- Reykjavik
- Country
- Iceland
IST — India Standard Time
Colombo, Sri Lanka — UTC offset UTC+5:30
- Abbreviation
- IST
- UTC Offset
- UTC+5:30
- City
- Colombo
- Country
- Sri Lanka