Convert IST to +04 — Time Difference Between India Standard Time and Reunion
Drag the slider or click the time display to type a specific hour and instantly convert IST to +04 — Reunion is 1:30 hours behind India Standard Time. Scroll down to browse the full IST to +04 conversion table, check what time 9 AM, 10 AM, 11 AM, or 12 PM in Kolkata is in Reunion, and use the date picker to compare times on any day for accurate scheduling.
IST
India Standard Time
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+04
Reunion
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IST to +04 Time Zone Difference — Hour-by-Hour Conversion Table
Scan each row to find what time any hour in Kolkata is in Reunion — tap the arrows to jump between days, click "Today" to reset, and use the color-coded bands to quickly spot overlapping work hours, early mornings, and late nights at a glance.
| IST (Kolkata) | +04 (Reunion) |
|---|
How to Convert IST to +04
Drag the slider on the IST timeline to pick your time — the +04 time updates instantly. You can also click the time display to type a specific hour or pick one from the 15-minute interval dropdown, and use the date picker to check a different day.
What Is the Time Difference Between IST and +04?
Reunion (+04) is 1:30 hours behind India Standard Time (IST). To convert, subtract 1:30 hours — for example, 9:00 AM IST is 7:30 AM +04.
What Time Is It Now in Kolkata?
What Time Is It Now in Reunion?
IST to +04 Quick Reference
IST to +04 Meeting Planner
Use the color-coded table above to find overlapping work hours between Kolkata and Reunion. Amber rows mark daytime hours — pick a slot that falls in amber on both sides for a meeting that works for everyone.
Why Trust This IST to +04 Converter?
Timezoney uses the IANA Time Zone Database — the same source that powers your phone and computer — so every conversion handles daylight saving transitions and half-hour offsets automatically.
India Standard Time
- Abbreviation
- IST
- UTC Offset
- UTC+5:30
- City
- Kolkata
- Country
- India
Reunion
- Abbreviation
- +04
- UTC Offset
- UTC+4:00
- City
- Reunion
- Country
- Réunion