The short answer
Gilbert Islands Time is 11 hours ahead of Greenwich Mean Time.
Gilbert Islands Time☀
11:15:04am
+12:00 · UTC+12:00 · Thu, Jun 25
Greenwich Mean Time☾
12:15:04am
BST · UTC+01:00 · Thu, Jun 25
Read across to convert
Gilbert Islands Time
+12:00 · UTC+12:00
Greenwich Mean Time
BST · UTC+01:00
Click any row to pin that hour across both zones.
12amThu
1pmWed ·−1d
WORK1am
2pmWed ·−1d
WORK2am
3pmWed ·−1d
WORK3am
4pmWed ·−1d
WORK4am
5pmWed ·−1d
5am
6pmWed ·−1d
6am
7pmWed ·−1d
7am
8pmWed ·−1d
8am
9pmWed ·−1d
9am
WORK10pmWed ·−1d
10am
WORK11pmWed ·−1d
NOW
11am
WORK12amThu
12pm
WORK1am
1pm
WORK2am
2pm
WORK3am
3pm
WORK4am
4pm
WORK5am
5pm
6am
6pm
7am
7pm
8am
8pm
9am
WORK9pm
10am
WORK10pm
11am
WORK11pm
12pm
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Gilbert Islands Time
6pm–7pm
Greenwich Mean Time
7am–8am
Popular conversions
Quick reference.
9amGilbert Islands Time=10pmGreenwich Mean Time · prev day
12pmGilbert Islands Time=1amGreenwich Mean Time
3pmGilbert Islands Time=4amGreenwich Mean Time
5pmGilbert Islands Time=6amGreenwich Mean Time
9pmGilbert Islands Time=10amGreenwich Mean Time
In context
What each side covers.
Gilbert Islands Time
11:15am+12:00 · UTC+12:00
Cities on this clock
Greenwich Mean Time
12:15amBST · UTC+01:00
Cities on this clock
Related converters
Other popular pairs.
Pacific Time
4:15pm
India Standard Time
4:45am
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
7:15pm
Central European Time
1:15am
Eastern Time to Central Europe6 hours behind
India Standard Time
4:45am
Eastern Standard Time
7:15pm
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
12:15am
India Standard Time
4:45am
London to India4 hours 30 minutes behind
Pacific Standard Time
4:15pm
Eastern Standard Time
7:15pm
Pacific to Eastern Time3 hours behind
Central European Time
1:15am
India Standard Time
4:45am
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Gilbert Islands Time and Greenwich Mean Time. Can't find what you need? Email [email protected].
- What is the time difference between Gilbert Islands Time and Greenwich Mean Time?
- Gilbert Islands Time is 11 hours ahead of Greenwich Mean 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 9am in Gilbert Islands Time, what time is it in Greenwich Mean Time?
- 9am in Gilbert Islands Time is 10pm in Greenwich Mean Time on the previous day. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
- What's the best time for a call between Gilbert Islands Time and Greenwich Mean Time?
- There's no comfortable 9-to-5 overlap between Gilbert Islands Time and Greenwich Mean 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 — +12:00 and BST — 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.