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EST to RET Time Converter

Use this EST to RET time converter to compare US East Coast and Réunion time instantly. RET is 9 hours ahead of EST, so 9:00 AM EST becomes 6:00 PM RET and 5:00 PM EST becomes 2:00 AM (next day) RET. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.

EST Eastern Standard Time
...
RET Reunion Time
...
Select a time to convert

EST to RET Quick Facts

Use this EST to RET converter to compare US East Coast and Réunion time, check the 9 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM EST / 6:00 PM RET.

Time Difference
Reunion Time is 9 hours ahead of Eastern Standard Time
Useful when deadlines, handoffs, or calls cross workday boundaries.
Best Call Window
Best overlap starts around 9:00 AM EST and 6:00 PM RET.
Common Use Cases
Useful for remote teams, customer support windows, travel planning, webinars, and same-day deadline handoffs.

How to Convert EST to RET

Converting between Eastern Standard Time and Reunion Time means accounting for a 9 hours gap — here's how to do it in under 10 seconds with no sign-up.

Enter Your EST Time

Pick the date and time in Eastern Standard Time (UTC -5) that you want to convert. Hit "Now" to load the current EST time instantly, or use "+1h" to step forward and compare.

Read the RET Result

The equivalent Reunion Time (UTC +4) time appears immediately. Since RET is 9 hours ahead of EST, most daytime conversions stay on the same calendar day.

Copy or Fine-Tune

Click "Copy Time" to grab the RET result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — helpful for scheduling recurring United States–Réunion calls.

Why Choose Our EST to RET Converter

Align EST–RET Meetings Instantly

When someone in United States suggests 9:00 AM EST, that's 6:00 PM RET. This converter shows the overlap so both sides agree on one slot — no back-and-forth.

Spot Date-Line Shifts at a Glance

Late-night EST times can land on a different date in RET because of the 9 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.

Handles DST Transitions Automatically

Daylight Saving adjustments can widen or narrow the EST–RET gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.

Never Miss a EST-Timed Event

Product launches, sports matches, and webinars are often announced in EST. Convert the event time to RET so you know exactly when to tune in — with a 9 hours difference, a morning event in United States falls during work hours in Réunion.

EST to RET Time Conversion Chart

Quick-reference conversion table covering every hour of the day at a glance.

Complete 24-Hour Conversion

Eastern Standard Time to Reunion Time full day schedule

12:00 AM
EST
→
9:00 AM
RET
1:00 AM
EST
→
10:00 AM
RET
2:00 AM
EST
→
11:00 AM
RET
3:00 AM
EST
→
12:00 PM
RET
4:00 AM
EST
→
1:00 PM
RET
5:00 AM
EST
→
2:00 PM
RET
6:00 AM
EST
→
3:00 PM
RET
7:00 AM
EST
→
4:00 PM
RET
8:00 AM
EST
→
5:00 PM
RET
9:00 AM
EST
→
6:00 PM
RET
10:00 AM
EST
→
7:00 PM
RET
11:00 AM
EST
→
8:00 PM
RET
12:00 PM
EST
→
9:00 PM
RET
1:00 PM
EST
→
10:00 PM
RET
2:00 PM
EST
→
11:00 PM
RET
3:00 PM
EST
→
12:00 AM
RET
(next day)
4:00 PM
EST
→
1:00 AM
RET
(next day)
5:00 PM
EST
→
2:00 AM
RET
(next day)
6:00 PM
EST
→
3:00 AM
RET
(next day)
7:00 PM
EST
→
4:00 AM
RET
(next day)
8:00 PM
EST
→
5:00 AM
RET
(next day)
9:00 PM
EST
→
6:00 AM
RET
(next day)
10:00 PM
EST
→
7:00 AM
RET
(next day)
11:00 PM
EST
→
8:00 AM
RET
(next day)
The two zones in context

EST vs RET — cities and working rhythm

EST — Eastern Standard Time
Primary cities: New York, Toronto, Miami, Atlanta, Washington DC

US East Coast — the reference clock for US business, Wall Street, US law and consulting firms, most Fortune 500 HQ. Business hours 9 AM – 6 PM ET. Note: EST is the winter offset (UTC-5); EDT (UTC-4) is the summer offset — "ET" is the year-round non-committal way to refer to this zone in scheduling apps.

Popular EST Time Converters

Explore more EST conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.

Convert Other Time Zones to RET

Find the time difference from any major zone into Reunion Time. Use these pages when scheduling with Réunion from a different region.

🇷🇪 Swap direction — RET to EST Converter