[#BloombergLP-bdlt-operator_minus-0f]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::operator‐
:relfileprefix: ../../
:mrdocs:

Return the difference between the specified `lhs` and `rhs` intervals.

== Synopsis

Declared in `<bdlt_datetimeinterval.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/DatetimeInterval.adoc[bdlt::DatetimeInterval]
operator‐(
    xref:BloombergLP/bdlt/DatetimeInterval.adoc[DatetimeInterval] const& lhs,
    xref:BloombergLP/bdlt/DatetimeInterval.adoc[DatetimeInterval] const& rhs);
----

== Description

Return a `DatetimeInterval` object whose value is the difference between the specified `lhs` and `rhs` time intervals. The behavior is undefined unless the resulting time interval value is valid (i.e., the days field must not overflow a 32‐bit integer).

== Return Value

the difference between `lhs` and `rhs`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *lhs*
| left‐hand time interval
| *rhs*
| right‐hand time interval
|===


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