TimePeriod
This object provides info about a time period expressed in ISO8601 (the time part is optional). E.g.:
// complete time period
var when = {
"from" : "2000-01-01T00:00:00Z",
"to": "2013-01-01"
};
// time period having only start time
var when = {
"from" : "2000-01-01T00:00:00Z"
}
// time period having only end time
var when = {
"to" : "2013-01-01"
}
See also DAB discover 'when constraint'.
See also Report