GMT to YAPT Time Converter

Convert Greenwich Mean Time (GMT) to Yap Time (YAPT). Both time zones are shown live below; current offset between them is 9 hours ahead.

London · Greenwich Mean Time
07:23:38
Friday, May 22, 2026
GMT+1 · UTC+01:00
Colonia · Yap Time
16:23:38
Friday, May 22, 2026
GMT+10 · UTC+10:00

Convert a specific time

From: GMT (London)
To: YAPT (Colonia)
--:--

Daylight Saving status right now

GMT (Greenwich Mean Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-10-25
Offset shift
UTC+01:00 → UTC+00:00
YAPT (Yap Time)
Observes DST
No

Heads up: GMT observes DST while YAPT does not. The 9-hour difference shown above will shift by one hour when GMT starts or ends DST.

When can GMT and YAPT meet?

00
01
02
03
04
05
06
07
08
09
10
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17
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21
22
23
GMT
YAPT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in London (GMT). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 08:00–09:00 GMT (17:00–18:00 YAPT).

Hour-by-hour GMT to YAPT conversion table

GMT time (London)YAPT time (Colonia)Status
00:00 Fri09:00 FriYAPT working
01:00 Fri10:00 FriYAPT working
02:00 Fri11:00 FriYAPT working
03:00 Fri12:00 FriYAPT working
04:00 Fri13:00 FriYAPT working
05:00 Fri14:00 FriYAPT working
06:00 Fri15:00 FriYAPT working
07:00 Fri16:00 FriYAPT working
08:00 Fri17:00 FriOff-hours both sides
09:00 Fri18:00 FriGMT working
10:00 Fri19:00 FriGMT working
11:00 Fri20:00 FriGMT working
12:00 Fri21:00 FriGMT working
13:00 Fri22:00 FriGMT working
14:00 Fri23:00 FriGMT working
15:00 Fri00:00 SatGMT working
16:00 Fri01:00 SatGMT working
17:00 Fri02:00 SatOff-hours both sides
18:00 Fri03:00 SatOff-hours both sides
19:00 Fri04:00 SatOff-hours both sides
20:00 Fri05:00 SatOff-hours both sides
21:00 Fri06:00 SatOff-hours both sides
22:00 Fri07:00 SatOff-hours both sides
23:00 Fri08:00 SatOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Greenwich Mean Time (GMT)
IANA identifier
Europe/London
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
LondonManchesterEdinburghBirmingham
Yap Time (YAPT)
IANA identifier
Pacific/Yap
Current UTC offset
UTC+10:00
Current abbreviation
GMT+10
Major cities in this zone
Colonia

Sun today in London and Colonia

London
Sunrise
05:00
Sunset
20:56
Solar noon
12:58
Daylight
15h 55m

Related converters

YAPT to GMT (reverse)GMT to ESTGMT to PSTGMT to UTCGMT to CETGMT to ISTEST to YAPTPST to YAPTUTC to YAPTCET to YAPTIST to YAPT
Looking for local time? See time in London or time in Colonia.

Frequently asked questions

What is the time difference between GMT and YAPT right now?+
YAPT (Yap Time) is currently 9 hours ahead GMT (Greenwich Mean Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does GMT or YAPT observe daylight saving time?+
GMT: observes daylight saving time. YAPT: does not observe daylight saving time.
When is the best time to schedule a meeting between GMT and YAPT?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 08:00–09:00 GMT (17:00–18:00 YAPT).
What time is it in Colonia when it is 12:00 noon in London?+
When it is 12:00 Fri in London (GMT), it is 21:00 Fri in Colonia (YAPT).
Which IANA time zone identifiers are used for GMT and YAPT?+
GMT maps to "Europe/London" in the IANA database. YAPT maps to "Pacific/Yap". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is London ahead of or behind Colonia?+
Whether London (GMT) is ahead of or behind Colonia (YAPT) depends on the current UTC offsets. Right now YAPT is 9 hours ahead GMT. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for GMT and YAPT?+
GMT is UTC+01:00 (GMT+1) and YAPT is UTC+10:00 (GMT+10). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both GMT and YAPT?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between GMT and YAPT is 08:00–09:00 GMT.