• DateTime is a structure in .NET that “represents an instant in time, typically expressed as a date and time of day.”

• In Joda-Time, a popular Java library, DateTime is a class serving similar purpose.

• In Python it is both a similar object, and the module (library) that “supplies classes for manipulating dates and times in both simple and complex ways.”

• In PHP the DateTime class is a “representation of date and time”.

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