Updating current time…
IrelandIST
UTC+1
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Tallaght's clocks go back 1 hour on Sun, Oct 25 · IST → GMT
AZOST
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

1:00 pm13:00 IST (UTC+1), Oct 13, 2026 = 12:00 pm12:00 AZOST (UTC+0), Oct 13, 2026

Tallaght is 1 hour ahead of AZOST.

How the time difference changes

For most of the year, Tallaght is 1 hour ahead of AZOST. From Oct 25, 2026 to Mar 28, 2027, Tallaght is 1 hour ahead of AZOT.

For most of the year, working hours of 9:00 am to 5:00 pm in Tallaght correspond to 8:00 am to 4:00 pm in AZOST. At other times of the year, working hours of 9:00 am to 5:00 pm in Tallaght correspond to 8:00 am to 4:00 pm in AZOT.For most of the year, working hours of 09:00 to 17:00 in Tallaght correspond to 08:00 to 16:00 in AZOST. At other times of the year, working hours of 09:00 to 17:00 in Tallaght correspond to 08:00 to 16:00 in AZOT.

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

Time Difference

IST (Irish Standard Time) is 1 hour ahead of Azores Summer Time.
1:00 pm13:00 in Tallaght, Ireland is 12:00 pm12:00 in AZOST

Tallaght to AZOST call time
Best time for a conference call or a meeting is between 10am-5pm10:00-17:00 in Tallaght which corresponds to 9am-4pm09:00-16:00 in AZOST

1:00 pm13:00 IST (Irish Standard Time) (Tallaght, Ireland). Offset UTC +1:00 hour
12:00 pm12:00 Azores Summer Time (AZOST). Offset UTC 0:00 hours

1:00 pm13:00 Tallaght, Ireland / 12:00 pm12:00 AZOST

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.

Hourly time comparison
Tallaght, IrelandAZOST
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Tallaght Time Zone and Facts

Time Zone

Abbreviation / Offset
IST – Irish Standard Time, UTC+1 (now, daylight saving time)
GMT – Greenwich Mean Time, UTC+0 (standard time)
Daylight Saving Time Ends
123456789101112Sunday, October 25, 2026 at 2:00 amSunday, October 25, 2026 at 02:00: clocks go back 1 hour to 1:00 am01:00 (GMT). DST ends on the last Sunday of October each year. Also called Fall Back or Winter Time.
Daylight Saving Time Starts
123456789101112Sunday, March 28, 2027 at 1:00 amSunday, March 28, 2027 at 01:00: clocks go forward 1 hour to 2:00 am02:00 (IST). DST starts on the last Sunday of March each year. Also called Spring Forward or Summer Time.

Tallaght Facts

Country
Ireland
Alternative Names
Talagtas, Talat, Talla, Tallaght, Tallakht, Tamhlacht, ta la, talla, tla, Талат, Талла, Таллахт, تلا, 塔拉, 탈라
Population
81,022
Currency
Euro (EUR)
Geographic Coordinates
53° 17' N Latitude / 6° 22' W Longitude
International Dialing Code
+353

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.

Map of the areas on Azores Summer Time (AZOST)
AZOST part of the year

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).

123456789101112Start: 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.

123456789101112End: 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 upcoming clock changes worldwide.

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 - Coordinated Universal Time
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone