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  2. 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) — the state of Baja California. UTC−07:00 (Zone 3 or Pacific Zone) — the 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) — the state of Quintana Roo. Time in Mexico.

  3. ISO 8601 - Wikipedia

    en.wikipedia.org/wiki/ISO_8601

    ISO 8601 is an international standard covering the worldwide exchange and communication of date and time -related data. It is maintained by the Geneva -based International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019. The standard aims to provide a well-defined, unambiguous ...

  4. Date format by country - Wikipedia

    en.wikipedia.org/wiki/Date_format_by_country

    National standard format is yyyy-mm-dd. dd.mm.yyyy format is used in some places where it is required by EU regulations, for example for best-before dates on food and on driver's licenses. d/m format is used casually, when the year is obvious from the context, and for date ranges, e.g. 28-31/8 for 28-31 August.

  5. E series of preferred numbers - Wikipedia

    en.wikipedia.org/wiki/E_series_of_preferred_numbers

    The E series is a system of preferred numbers (also called preferred values) derived for use in electronic components. It consists of the E3, E6, E12, E24, E48, E96 and E192 series, [1] where the number after the 'E' designates the quantity of logarithmic value "steps" per decade. Although it is theoretically possible to produce components of ...

  6. Numeric precision in Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Numeric_precision_in...

    The inaccuracy in Excel calculations is more complicated than errors due to a precision of 15 significant figures. Excel's storage of numbers in binary format also affects its accuracy. To illustrate, the lower figure tabulates the simple addition 1 + x − 1 for several values of x.

  7. Currency - Wikipedia

    en.wikipedia.org/wiki/Currency

    v. t. e. A currency [a] is a standardization of money in any form, in use or circulation as a medium of exchange, for example banknotes and coins. [1] [2] A more general definition is that a currency is a system of money in common use within a specific environment over time, especially for people in a nation state. [3]

  8. Longitude - Wikipedia

    en.wikipedia.org/wiki/Longitude

    Because of the Earth's rotation, there is a close connection between longitude and time. Local time varies with longitude: a difference of 15° longitude corresponds to a one-hour difference in local time, due to the differing position in relation to the Sun. Comparing local time to an absolute measure of time allows longitude to be determined.

  9. Grading systems by country - Wikipedia

    en.wikipedia.org/wiki/Grading_systems_by_country

    The grading system in use at Nigerian institutions depends on the institution and sometimes on the faculty of the institution. In addition, grading scales at university-level institutions have changed frequently. Grading scales can be 1 to 8, 1 to 4, or A through G, where A is on a 4.0 scale or on a 5.0 scale.