Time - Second


The second is the base unit of time in the International System of Units (SI).

The length of an SI second was defined to be very close to the 86400th fraction of a day.


A fractional second is fraction of a second (generally on a millisecond precision)

The SQL ansi standard defines them as the number of decimal digits following the decimal point in the seconds value.

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Date - time part

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Data System Architecture
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Utc Time Zone
What is the UTC standard (Coordinated Universal Time) ?

UTC (Universal Coordinated Time) is the primary time standard by which the world regulates clocks and time. The UTC time scale was introduced in 1972, introducing the concept of whole leap-seconds. ...

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