$hour

Returns the hour from the input date.

Options

• date (optional) Input date. Default random (0-23).

Example

Template

{
    "someDate": "$dt",
    "hour": { "$hour": "${someDate}" }
}

Output

{
    "someDate": ISODate("2016-06-28T15:28:54.721Z"),
    "hour": 15
}