Water 5-Common Data Types-Date and Time

Subtract a duration or datetime from a datetime

Contract
Return type	wob
Parameter key	Default value	Type
duration_or_datetime	req

Water Contract
<method datetime.minus duration_or_datetime=req/>

See also: duration, plus

Subtracts duration_or_datetime of type duration from the _subject of type datetime , giving a new datetime as the result.

Example: Subtracting two months from a datetime

<datetime 2006 08 16 0 0 0 0 />.<minus <duration months=2.0 /> />.<to_htm />

"Jun 16, 2006"

This method may also be used to determine the difference between two datetimes by passing duration_or_datetime of type datetime . The result will be of type duration .

Example: Subtracting one datetime from another

<datetime 2006 08 16 0 0 0 0 />.<minus <datetime 2006 06 16 0 0 0 0 /> />

<duration days=61/>