The short answer

10am in Diego Garcia is 12am in Eastern Standard Time.

Diego Garcia is 10 hours ahead of Eastern Standard Time. It lands deep outside working hours in Eastern Standard Time — see the best time to meet below for a friendlier slot.

Diego Garcia
10am
Eastern Standard Time
12am
Right now
4:47am+06:00 · UTC+06:00 · Sun, Jun 28
6:47pmEDT · UTC-04:00 · Sat, Jun 27
Read across to convert
Diego Garcia
+06:00 · UTC+06:00
4:47am ☾
Eastern Standard Time
EDT · UTC-04:00
6:47pm ☾
Pinned10amDiego Garcia=12amEastern Standard Time
12amSun
2pmSat ·−1d
WORK
1am
3pmSat ·−1d
WORK
2am
4pmSat ·−1d
WORK
3am
5pmSat ·−1d
NOW
4am
6pmSat ·−1d
5am
7pmSat ·−1d
6am
8pmSat ·−1d
7am
9pmSat ·−1d
8am
10pmSat ·−1d
9am
WORK
11pmSat ·−1d
PINNED
10am
WORK
12amSun
11am
WORK
1am
12pm
WORK
2am
1pm
WORK
3am
2pm
WORK
4am
3pm
WORK
5am
4pm
WORK
6am
5pm
7am
6pm
8am
7pm
9am
WORK
8pm
10am
WORK
9pm
11am
WORK
10pm
12pm
WORK
11pm
1pm
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Diego Garcia
5pm–7pm
=
Eastern Standard Time
7am–9am
Popular conversions

Quick reference.

9amDiego Garcia=11pmEastern Standard Time · prev day
12pmDiego Garcia=2amEastern Standard Time
3pmDiego Garcia=5amEastern Standard Time
5pmDiego Garcia=7amEastern Standard Time
9pmDiego Garcia=11amEastern Standard Time
In context

What each side covers.

Diego Garcia
+06:00 · UTC+06:00
4:47am

British Indian Ocean Territory

Eastern Standard Time
EDT · UTC-04:00
6:47pm
Did you mean…? “EDT” is shared by several places. This page shows Eastern Standard Time (US & Canada) — or switch to Australian Eastern Standard Time.

Frequently asked

Quick answers about converting between Diego Garcia and Eastern Standard Time. Can't find what you need? Email [email protected].

What is the time difference between Diego Garcia and Eastern Standard Time?
Diego Garcia is 10 hours ahead of Eastern Standard Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 10am in Diego Garcia, what time is it in Eastern Standard Time?
10am in Diego Garcia is 12am in Eastern Standard Time. It lands deep outside working hours in Eastern Standard Time — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Diego Garcia and Eastern Standard Time?
There's no comfortable 9-to-5 overlap between Diego Garcia and Eastern Standard Time — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — +06:00 and EDT — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.