ElasticSearch range

When using date math to round dates to the nearest day, month, hour, etc, the rounded dates depend on whether the ends of the ranges are inclusive or exclusive.

Rounding up moves to the last millisecond of the rounding scope, and rounding down to the first millisecond of the rounding scope. For example:

Formatted dates will be parsed using the format specified on the date field by default, but it can be overridden by passing the format parameter to the range query:

GET _search
{
    "query": {
        "range" : {
            "born" : {
                "gte": "01/01/2012",
                "lte": "2013",
                "format": "dd/MM/yyyy||yyyy"
            }
        }
    }
}

Note that if the date misses some of the year, month and day coordinates, the missing parts are filled with the start of unix time, which is January 1st, 1970. This means, that when e.g. specifying ddas the format, a value like "gte" : 10 will translate to 1970-01-10T00:00:00.000Z.

Dates can be converted from another timezone to UTC either by specifying the time zone in the date value itself (if the format accepts it), or it can be specified as the time_zone parameter:

GET _search
{
    "query": {
        "range" : {
            "timestamp" : {
                "gte": "2015-01-01 00:00:00", 

                "lte": "now", 

                "time_zone": "+01:00"
            }
        }
    }
}