Brazil
-03
GMT/IST
Greenwich Mean Time
GMT +0
IST automatically adjusted to GMT time zone, that is in use

Time Difference

is 3 hours behind Greenwich Mean Time
11:00 pm23:00 in Porto Alegre, Brazil is 2:00 am02:00 in GMT

Porto Alegre to IST call time
Best time for a conference call or a meeting is between 8am-2pm in Porto Alegre which corresponds to 12pm-6pm in IST

11:00 pm23:00 (Porto Alegre, Brazil). Offset UTC -3:00 hours
2:00 am02:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

11:00 pm23:00 Porto Alegre, Brazil / 2:00 am02:00 GMT

Porto Alegre, Brazil GMT
12am (midnight) 3am
1am 4am
2am 5am
3am 6am
4am 7am
5am 8am
6am 9am
7am 10am
8am 11am
9am 12pm (noon)
10am 1pm
11am 2pm
12pm (noon) 3pm
1pm 4pm
2pm 5pm
3pm 6pm
4pm 7pm
5pm 8pm
6pm 9pm
7pm 10pm
8pm 11pm
9pm 12am (midnight)
10pm 1am
11pm 2am
0:00 3:00
1:00 4:00
2:00 5:00
3:00 6:00
4:00 7:00
5:00 8:00
6:00 9:00
7:00 10:00
8:00 11:00
9:00 12:00
10:00 13:00
11:00 14:00
12:00 15:00
13:00 16:00
14:00 17:00
15:00 18:00
16:00 19:00
17:00 20:00
18:00 21:00
19:00 22:00
20:00 23:00
21:00 0:00
22:00 1:00
23:00 2:00

Porto Alegre Information

Time Zone

Abbreviation / Name
-03 -
BRST - Brasilia Summer Time
UTC / GMT Offset
-3:00 hours during , currently in use.
-2:00 hours during Brasilia Summer Time.
Daylight Saving Time Change
+1:00 hour - DST is NOT in use
Daylight Saving Time Starts
Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Also called Fall Back or switch to Winter Time.

Porto Alegre Facts

Country
Brazil
Alternative Names
POA, Porto Alegre, Porto Alegri, Porto Alegrė, Porto Alenkre, Porto de Sao Francisco dos Casaes, Porto-Alegro, Portu-Alegre, Portu-Alegri, Portu-Alegry, Portualegri, Portus Alacer, Puerto Alegre, Pôrto de São Francisco dos Casaes, a lei ge li gang, bwrtw alyghry, parto alegre, poleutuallegeuli, portu alegri, pwrtw algrh, Πόρτο Αλέγκρε, Порто Алегре, Порто Алегри, Порту-Алегре, Порту-Алегри, Порту-Алегры, Порту-Алегрі, פורטו אלגרה, بورتو أليغري, پورتو الگره, پورتو الیگرے, पोर्तू अलेग्री, পর্টো আলেগ্রে, პორტუ-ალეგრი, ポルト・アレグレ, 阿雷格里港, 포르투알레그리
Population
1,372,741
Currency
Real (BRL)
Geographic Coordinates
30° 01' S Latitude / 51° 13' W Longitude
International Dialing Code
+55

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

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 for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

IST Time Zone Geo Map
IST timezone map

IST 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 one hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for IST
  • A - short form of 'Alpha'
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Eire
  • Europe/Dublin
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
  • Iran Standard Time - UTC +3:30
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