IST
Irish Standard Time
GMT +1
RMT
GMT +0:49

Time Difference

Irish Standard Time is 0 hours and 10.066666666666668 minutes ahead of
11:00 pm23:00 in IST is 10:49 pm22:49 in RMT

IST to RMT call time
Best time for a conference call or a meeting is between 8:10.066666666666642am-6pm in IST which corresponds to 8am-5:49.93333333333325pm in RMT

11:00 pm23:00 Irish Standard Time (IST). Offset UTC +1:00 hour
10:49 pm22:49 (RMT). Offset UTC +0:49 hours

11:00 pm23:00 IST / 10:49 pm22:49 RMT

IST RMT
12am (midnight) 11:49 pm
1am 12:49 am
2am 1:49 am
3am 2:49 am
4am 3:49 am
5am 4:49 am
6am 5:49 am
7am 6:49 am
8am 7:49 am
9am 8:49 am
10am 9:49 am
11am 10:49 am
12pm (noon) 11:49 am
1pm 12:49 pm
2pm 1:49 pm
3pm 2:49 pm
4pm 3:49 pm
5pm 4:49 pm
6pm 5:49 pm
7pm 6:49 pm
8pm 7:49 pm
9pm 8:49 pm
10pm 9:49 pm
11pm 10:49 pm
0:00 23:49
1:00 0:49
2:00 1:49
3:00 2:49
4:00 3:49
5:00 4:49
6:00 5:49
7:00 6:49
8:00 7:49
9:00 8:49
10:00 9:49
11:00 10:49
12:00 11:49
13:00 12:49
14:00 13:49
15:00 14:49
16:00 15:49
17:00 16:49
18:00 17:49
19:00 18:49
20:00 19:49
21:00 20:49
22:00 21:49
23:00 22:49

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

IST Time Zone Geo Map
IST timezone map

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: Irish Standard Time (IST) started on Sunday, March 31, 2024 at 3:00 am local time and clocks were set one hour back to Sunday, March 31, 2024, 2:00 am. Standard time starts annually the on last Sunday of March.

End: Irish Standard Time (IST) ends on Sunday, October 27, 2024 at 2:00 am local time and clocks are set one hour forward to Sunday, October 27, 2024, 3:00 am local daylight time instead. Standard time starts annually the on last Sunday of October.

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

RMT

Offset: RMT is 0 hours and 49.93333333333333 minutes ahead Greenwich Mean Time (GMT) and is used in Europe

RMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0050 - basic
  • +00:50 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0049 - sign character (+) followed by a four digit time providing hours (00) and minutes (49) of the offset. Indicates zero hour and forty-nine minutes time differences to the east of the zero meridian.