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  2. List of tz database time zones - Wikipedia

    en.wikipedia.org/wiki/List_of_tz_database_time_zones

    Link - An alternative name (alias) which links to a canonical zone. Link † - A standard Link (as above). The dagger symbol (†) signifies that the zone was canonical in a previous version of the database. Historical data for such zones is still preserved in the source code, but it is not included when compiling the database with standard ...

  3. tz database - Wikipedia

    en.wikipedia.org/wiki/Tz_database

    Within the tz database, a timezone is any national region where local clocks have all agreed since 1970. [11] This definition concerns itself first with geographic areas which have had consistent local clocks. A timezone is different from a region with a particular standard time offset from UTC, which is often

  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 abbreviations – abbreviations; List of tz database time zones – zones used by many computer systems as defined by IANA; List of military time zones; Country-specific: List of time zones by U.S ...

  5. List of time zones by country - Wikipedia

    en.wikipedia.org/wiki/List_of_time_zones_by_country

    UTC−08:00 – Pacific Time zone: the Pacific coast states, the Idaho Panhandle and most of Nevada and Oregon UTC−07:00 – Mountain Time zone: most of Idaho, part of Oregon, and the Mountain states plus western parts of some adjacent states UTC−06:00 – Central Time zone: a large area spanning from the Gulf Coast to the Great Lakes

  6. Local time - Wikipedia

    en.wikipedia.org/wiki/Local_time

    Local time is the time observed in a specific locality. There is no canonical definition. There is no canonical definition. Originally it was mean solar time , but since the introduction of time zones it is generally the time as determined by the time zone in effect, with daylight saving time where and when applicable. [ 1 ]

  7. Local mean time - Wikipedia

    en.wikipedia.org/wiki/Local_mean_time

    Local mean time (LMT) is a form of solar time that corrects the variations of local apparent time, forming a uniform time scale at a specific longitude. This measurement of time was used for everyday use during the 19th century before time zones were introduced beginning in the late 19th century; it still has some uses in astronomy and navigation.

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    mail.aol.com

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  9. Database connection - Wikipedia

    en.wikipedia.org/wiki/Database_connection

    Database connections are finite and expensive and can take a disproportionately long time to create relative to the operations performed on them. It is inefficient for an application to create, use, and close a database connection whenever it needs to update a database. Connection pooling is a technique designed to alleviate this problem. A ...