Updating current time…
AZOT/AZOST
Azores Time
GMT -1
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AZOST is not used on this date
This converter uses AZOT (GMT -1), the offset Azores uses on this date. Open the AZOT converter.
WEST
Western European Summer Time
GMT +1
12am
3am
6am
9am
12pm
3pm
6pm
9pm
WEST is not used on this date
This converter keeps WEST at GMT +1. Lisbon uses WET (GMT +0) on this date. Open the WET converter, or choose Lisbon, Las Palmas de Gran Canaria, or Porto for city-specific time.

Quick answers

Selected conversion

The selected date and time will appear here when the converter loads.

AZOST and WEST examples

These examples always use AZOST (UTC+0) and WEST (UTC+1). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

AZOST is 1 hour behind WEST.

How the time difference changes

For most of the year, AZOST is 1 hour behind WEST. At other times of the year, AZOT is 2 hours behind WEST.

For most of the year, working hours of 9:00 am to 5:00 pm in AZOST correspond to 10:00 am to 6:00 pm in WEST. At other times of the year, working hours of 9:00 am to 5:00 pm in AZOT correspond to 11:00 am to 7:00 pm in WEST.

Compare AZOST time with WEST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Azores Time is 2 hours behind Western European Summer Time
11:00 am11:00 in AZOT is 1:00 pm13:00 in WEST

AZOT to WEST call time
Best time for a conference call or a meeting is between 9am-3pm in AZOT which corresponds to 11am-5pm in WEST

11:00 am11:00 Azores Time (AZOT). Offset UTC -1:00 hours
1:00 pm13:00 Western European Summer Time (WEST). Offset UTC +1:00 hour

11:00 am11:00 AZOT / 1:00 pm13:00 WEST

AZOTWEST
12am (midnight)2am
1am3am
2am4am
3am5am
4am6am
5am7am
6am8am
7am9am
8am10am
9am11am
10am12pm (noon)
11am1pm
12pm (noon)2pm
1pm3pm
2pm4pm
3pm5pm
4pm6pm
5pm7pm
6pm8pm
7pm9pm
8pm10pm
9pm11pm
10pm12am (midnight)
11pm1am
00:0002:00
01:0003:00
02:0004:00
03:0005:00
04:0006:00
05:0007:00
06:0008:00
07:0009:00
08:0010:00
09:0011:00
10:0012:00
11:0013:00
12:0014:00
13:0015:00
14:0016:00
15:0017:00
16:0018:00
17:0019:00
18:0020:00
19:0021:00
20:0022:00
21:0023:00
22:0000:00
23:0001:00

Azores Summer Time

Offset: AZOST is 0 hours ahead Greenwich Mean Time (GMT) and is used in Atlantic

AZOST Time Zone Geo Map
AZOST timezone map

Daylight Saving: Azores Summer Time (AZOST) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Azores Time (AZOT).

Daylight saving time clock moves forward for one hour from 1am to 2amEnd: Azores Summer Time (AZOST) ended on Sunday, October 26, 2025 at 1:00 am local time and clocks were set one hour back to Sunday, October 26, 2025, 12:00 am local standard time instead. Daylight saving ends annually on the last Sunday of October

Daylight saving time clock moves back for one hour from 12am to 11pmStart: Azores Summer Time (AZOST) starts on Sunday, March 29, 2026 at 12:00 am local time and clocks are set one hour forward to Sunday, March 29, 2026, 1:00 am. Daylight saving starts annually on the last Sunday of March

AZOST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for AZOST
  • Z - short form of 'Zulu'
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Western European Summer Time

Offset: WEST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe

Countries using this time zone: Spain, Faroe Islands, Portugal

Principal Cities: The largest city in the WEST time zone is Lisbon in Portugal, with about 517,802 people. Other major cities in this time zone include Las Palmas de Gran Canaria, Porto, Santa Cruz de Tenerife, Amadora.

German: WESZ - Westeuropäische Sommerzeit

WEST Time Zone Geo Map
WEST timezone map

Daylight Saving: Western European Summer Time (WEST) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Western European Time (WET).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Western European Summer Time (WEST) ended on Sunday, October 26, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, October 26, 2025, 1:00 am local standard time instead. Daylight saving ends annually on the last Sunday of October

Daylight saving time clock moves back for one hour from 1am to 12amStart: Western European Summer Time (WEST) starts on Sunday, March 29, 2026 at 1:00 am local time and clocks are set one hour forward to Sunday, March 29, 2026, 2:00 am. Daylight saving starts annually on the last Sunday of March

WEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for WEST
  • A - short form of 'Alpha'
IANA/Olson: Reflects WEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Atlantic/Canary
  • Atlantic/Faeroe
  • Atlantic/Faroe
  • Atlantic/Madeira
  • Europe/Lisbon
  • Portugal
  • WET
Time zones with the GMT +1 offset:
  • BST - British Summer Time
  • CET - Central European Time
  • IST - Irish Standard Time
  • WEST - Western European Summer Time
  • A - Alpha Time Zone
  • CET - Central European Time
  • MEZ - Mitteleuropäische Zeit
  • WAT - West Africa Time
  • WST - Western Sahara Summer Time
  • BMT - Biel Mean Time