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  2. List of tz database time zones - Wikipedia

    en.wikipedia.org/wiki/List_of_tz_database_time_zones

    Some of zone records use 3 or 4 letter abbreviations that are tied to physical time zones, others use numeric UTC offsets. In Ireland, what Irish law designates as "standard time" is observed during the summer, with clocks turned one hour ahead of UTC.

  3. List of time zone abbreviations - Wikipedia

    en.wikipedia.org/.../List_of_time_zone_abbreviations

    Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in ...

  4. Lists of time zones - Wikipedia

    en.wikipedia.org/wiki/Lists_of_time_zones

    List of time zones by country – sorted by number of current time zones in the world; List of UTC offsets – current UTC offsets; List of time zone abbreviationsabbreviations; List of tz database time zoneszones used by many computer systems as defined by IANA; List of military time zones; Country-specific: List of time zones by U.S ...

  5. Time in the Republic of Ireland - Wikipedia

    en.wikipedia.org/.../Time_in_the_Republic_of_Ireland

    Ireland uses Irish Standard Time (IST, UTC+01:00; Irish: Am Caighdeánach Éireannach) in the summer months and Greenwich Mean Time (UTC+00:00; Irish: Meán-Am Greenwich) in the winter period. [1] Roughly two-thirds of the Republic is located west of the 7.5°W meridian. Thus the local mean time in most of Ireland is closer to UTC-01:00 time ...

  6. List of time zones by country - Wikipedia

    en.wikipedia.org/wiki/List_of_time_zones_by_country

    UTC−08:00 (Zone 4 or Northwest Zone) – State of Baja California UTC−07:00 (Zone 3 or Pacific Zone) – States of Baja California Sur, Chihuahua, Nayarit, Sinaloa and Sonora UTC−06:00 (Zone 2 or Central Zone) – Most of Mexico UTC−05:00 (Zone 1 or Southeast Zone) – State of Quintana Roo: Time in Mexico: Chile: 3: UTC−06:00 ...

  7. tz database - Wikipedia

    en.wikipedia.org/wiki/Tz_database

    Each zone line for a zone specifies, for a range of date and time, the offset to UTC for standard time, the name of the set of rules that govern daylight saving time (or a hyphen if standard time always applies), the format for time zone abbreviations, and, for all but the last zone line, the date and time at which the range of date and time ...

  8. List of UTC offsets - Wikipedia

    en.wikipedia.org/wiki/List_of_UTC_offsets

    The two extreme time zones on Earth (both in the mid-Pacific) differ by 26 hours. Standard Time Zones, as of January 2, 2024 In the following list, only the rightmost indent of a group of locations is meant to indicate the area observing the offset; the places above and to the left are meant solely to indicate the area's parent administrative ...

  9. Category:Time zones - Wikipedia

    en.wikipedia.org/wiki/Category:Time_zones

    Pages in category "Time zones" The following 93 pages are in this category, out of 93 total. ... List of time zone abbreviations; List of time zones by country;