Time - Date


A date is a moment at the day precision level in a calendar.

The date data type is a time data type.

It is is an ordered numeric that should not contain any time part


A date is a day in a calendar.

A day is uniquely identified in a calendar in a time zone

  • String

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Date - time part

The time part of an instant are the following components : Hour, Minute, Seconds from . Example: 02:00:00 hours 3600000 milli-seconds (a negative number is milliseconds before January...
Instant - Precision

An instant can be defined at different level (known also as precision) Precision Instant Name year year-month year-month-day (such as an anniversary date) date year-month-day hour year-month-day...
Data System Architecture
SQL - Date datatype

A SQL DATE is a sql datatype that represents a date and contains therefore the s YEAR, MONTH, and DAY; See date...
First Day Of Week
Time - Calendar

A calendar is a schema for a date. It will define for instance what is the first day of a week. NEN_2772Netherlands Nummering...
Time - DateTime

A datetime is the representation of a instant at the second precision It contains the date and time part (Hour, Minute, Seconds, ...) Timestampfractional second precision
Time - Day

A day is a unit of time. If you add the unit year and month, you get a date. Over time the average length of the day is getting longer as the Earth slows. As a result, the length of a solar day in 2012...
Time - Instant as a numeric

Time such as: date timestamp or time (of the day) can be represented as a numeric. For instance: julian: the number of days since noon in Greenwich on November 24, 4714 B.C. according to the...
Time - Timestamp

TIMESTAMP is a Sql data type that stores a instant with a precision at the fractional seconds Its an extension of the datetime datatype that adds fractional second precision. An application that must...

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