AZOST to GMT Converter
The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.
Iceland and Ghana stay on GMT (UTC+0).
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Quick answers
Selected conversion
12:00 pm12:00 AZOST (UTC+0), Oct 18, 2026 = 12:00 pm12:00 GMT (UTC+0), Oct 18, 2026
AZOST and GMT have the same local time.
AZOST and GMT examples
These examples always use AZOST (UTC+0) and GMT (UTC+0). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
AZOST and GMT have the same local time.
How the time difference changes
For most of the year, AZOST and GMT have the same time. From Oct 25, 2026 to Mar 28, 2027, AZOT is 1 hour behind GMT.
For most of the year, working hours of 9:00 am to 6:00 pm in AZOST correspond to 9:00 am to 6:00 pm in GMT. At other times of the year, working hours of 9:00 am to 6:00 pm in AZOT correspond to 10:00 am to 7:00 pm in GMT.For most of the year, working hours of 09:00 to 18:00 in AZOST correspond to 09:00 to 18:00 in GMT. At other times of the year, working hours of 09:00 to 18:00 in AZOT correspond to 10:00 to 19:00 in GMT.
Compare AZOST time with GMT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Azores Summer Time and Greenwich Mean Time have the same local time.
12:00 pm12:00 in AZOST is 12:00 pm12:00 in GMT
AZOST to GMT call time
Best time for a conference call or a meeting is between 9am-6pm09:00-18:00 in AZOST which corresponds to 9am-6pm09:00-18:00 in GMT
12:00 pm12:00 Azores Summer Time (AZOST). Offset UTC 0:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
12:00 pm12:00 AZOST / 12:00 pm12:00 GMT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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Azores Summer Time
Offset: AZOST is the same as Greenwich Mean Time (GMT).
Countries using this time zone: Portugal
Principal Cities: The largest city in the AZOST time zone is Ponta Delgada in Portugal, with about 20,056 people. Other major cities in this time zone include Lagoa, Angra do Heroísmo, Rabo de Peixe, Horta.
Today all shaded areas are on AZOST.
Daylight Saving: Azores Summer Time (AZOST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Azores Time (AZOT).
Start: Azores Summer Time (AZOST) started on Sunday, March 29, 2026 at 12:00 am00:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 1:00 am01:00. Daylight saving starts annually on the last Sunday of March.
End: Azores Summer Time (AZOST) ends on Sunday, October 25, 2026 at 1:00 am01:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 12:00 am00:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
See Portugal daylight saving time and upcoming clock changes worldwide.
AZOST representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for AZOST
- Z - short form of 'Zulu'
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Greenwich Mean Time
Offset: GMT is the same as Greenwich Mean Time (GMT).
Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara
Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.
Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.
Today the lighter areas are on UTC+1 (British Summer Time, Irish Standard Time).
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- Africa/Abidjan
- Africa/Accra
- Africa/Bamako
- Africa/Banjul
- Africa/Bissau
- Africa/Conakry
- Africa/Dakar
- Africa/Freetown
- Africa/Lome
- Africa/Monrovia
- Africa/Nouakchott
- Africa/Ouagadougou
- Africa/Sao_Tome
- Africa/Timbuktu
- America/Danmarkshavn
- Atlantic/Reykjavik
- Atlantic/St_Helena
- Eire
- Etc/GMT
- Etc/GMT+0
- Etc/GMT-0
- Etc/GMT0
- Etc/Greenwich
- Europe/Belfast
- Europe/Dublin
- Europe/Guernsey
- Europe/Isle_of_Man
- Europe/Jersey
- Europe/London
- GB
- GB-Eire
- GMT
- GMT+0
- GMT-0
- GMT0
- Greenwich
- Iceland
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone