Irish Standard Time is 1 hours behind of Central Africa Time
So 11:00 pm23:00 in IST is 12:00 am00:00 in CAT
11:00 pm23:00 Irish Standard Time (IST). Offset UTC +1:00 hour
12:00 am00:00 Central Africa Time (CAT). Offset UTC +2:00 hours
11:00 pm23:00 IST / 12:00 am00:00 CAT
Irish Standard Time
Offset: IST is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries: It is used in following countries: Ireland
Principal Cities: The largest city in the IST timezone is Dublin from Ireland with population about 1.024 million people. Other major cities in the area are Cork, Dun Laoghaire, Luimneach, Gaillimh
Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Greenwich Mean Time (GMT).
Start: IST starts annually on the same date and time. and clocks were set one hour back on Sunday, March 31, 2019, at 3:00 (3:00 am) local time.
End: IST ends annually on the same date and time. and clocks are set one hour forward on Sunday, October 27, 2019, at 2:00 (2:00 am) local time.
IST representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates one hour and zero minutes time differences to the east of the zero meridian.
- Alpha - Military abbreviation for IST
- A - short form of 'Alpha'
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
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 - MitteleuropÃ¤ische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
- +01 -
Central Africa Time
Offset: CAT is 2 hours ahead Greenwich Mean Time (GMT) and is used in Africa
Countries: It is used in following countries: Burundi, Botswana, Congo (Dem. Rep.), Malawi, Mozambique, Namibia, Rwanda, Sudan, Zambia, Zimbabwe
Principal Cities: The largest city in the CAT timezone is Khartoum from Sudan with population about 1.975 million people. Other major cities in the area are Harare, Lubumbashi, Lusaka, Omdurman
Daylight Saving: Central Africa Time (CAT) is not adjusted for daylight saving therefore CAT remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Central Africa Time remains the same
CAT representations, usage and related time zones
- +02 - basic short
- +0200 - basic
- +02:00 - extended
- +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates two hour and zero minutes time differences to the east of the zero meridian.
- Bravo - Military abbreviation for CAT
- B - short form of 'Bravo'
Time zones with the GMT +2 offset:
- CEST - Central European Summer Time
- EET - Eastern European Time
- MESZ - MitteleuropÃ¤ische Sommerzeit
- B - Bravo Time Zone
- CAT - Central Africa Time
- IST - Israel Standard Time
- SAST - South Africa Standard Time
- WAST - West Africa Summer Time