GMT to WST Time Converter

Convert Greenwich Mean Time (GMT) to Samoa Time (WST). Both time zones are shown live below; current offset between them is 12 hours ahead.

London · Greenwich Mean Time
07:45:11
Wednesday, May 13, 2026
GMT+1 · UTC+01:00
Apia · Samoa Time
19:45:11
Wednesday, May 13, 2026
GMT+13 · UTC+13:00

Convert a specific time

From: GMT (London)
To: WST (Apia)
--:--

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
WST (Samoa Time)
Observes DST
No

Heads up: GMT observes DST while WST does not. The 12-hour difference shown above will shift by one hour when GMT starts or ends DST.

When can GMT and WST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
GMT
WST
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 business-hours overlap exists between GMT and WST.
The two zones are too far apart for synchronous meetings during normal working hours. Plan async or schedule outside 9-5 on at least one side.

Hour-by-hour GMT to WST conversion table

GMT time (London)WST time (Apia)Status
00:00 Wed12:00 WedWST working
01:00 Wed13:00 WedWST working
02:00 Wed14:00 WedWST working
03:00 Wed15:00 WedWST working
04:00 Wed16:00 WedWST working
05:00 Wed17:00 WedOff-hours both sides
06:00 Wed18:00 WedOff-hours both sides
07:00 Wed19:00 WedOff-hours both sides
08:00 Wed20:00 WedOff-hours both sides
09:00 Wed21:00 WedGMT working
10:00 Wed22:00 WedGMT working
11:00 Wed23:00 WedGMT working
12:00 Wed00:00 ThuGMT working
13:00 Wed01:00 ThuGMT working
14:00 Wed02:00 ThuGMT working
15:00 Wed03:00 ThuGMT working
16:00 Wed04:00 ThuGMT working
17:00 Wed05:00 ThuOff-hours both sides
18:00 Wed06:00 ThuOff-hours both sides
19:00 Wed07:00 ThuOff-hours both sides
20:00 Wed08:00 ThuOff-hours both sides
21:00 Wed09:00 ThuWST working
22:00 Wed10:00 ThuWST working
23:00 Wed11:00 ThuWST working

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
Samoa Time (WST)
IANA identifier
Pacific/Apia
Current UTC offset
UTC+13:00
Current abbreviation
GMT+13
Major cities in this zone
Apia

Sun today in London and Apia

London
Sunrise
05:13
Sunset
20:43
Solar noon
12:58
Daylight
15h 29m

Related converters

WST to GMT (reverse)GMT to ESTGMT to PSTGMT to UTCGMT to CETGMT to ISTEST to WSTPST to WSTUTC to WSTCET to WSTIST to WST
Looking for local time? See time in London or time in Apia.

Frequently asked questions

What is the time difference between GMT and WST right now?+
WST (Samoa Time) is currently 12 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 WST observe daylight saving time?+
GMT: observes daylight saving time. WST: does not observe daylight saving time.
When is the best time to schedule a meeting between GMT and WST?+
GMT and WST have no business-hour overlap, even at the edges of a typical workday. Async collaboration or non-9-5 scheduling is the practical choice.
What time is it in Apia when it is 12:00 noon in London?+
When it is 12:00 Wed in London (GMT), it is 00:00 Thu in Apia (WST).
Which IANA time zone identifiers are used for GMT and WST?+
GMT maps to "Europe/London" in the IANA database. WST maps to "Pacific/Apia". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is London ahead of or behind Apia?+
Whether London (GMT) is ahead of or behind Apia (WST) depends on the current UTC offsets. Right now WST is 12 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 WST?+
GMT is UTC+01:00 (GMT+1) and WST is UTC+13:00 (GMT+13). 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 WST?+
No standard business-hours overlap exists between GMT and WST. Plan asynchronous work or schedule outside 9-5 on at least one side.