This range helps to avoid running searches with overly-broad time ranges that waste system resources and produce more results than you really need. Splunk user interfaces use a default time range when you create a search. However, the values in the _time field are stored in UNIX time. The _time field appears in a human readable format in Splunk user interfaces. For example, the United Kingdom uses GMT for most of the year, but switches to British Summer Time (BST) during the summer months. However, some of the countries that use GMT switch to different time zones during their DST period. Neither GMT nor UTC ever change for Daylight Saving Time (DST).UTC is a time standard that is the basis for time and time zones worldwide.GMT is a time zone officially used in some European and African countries as their local time.However GMT is a time zone and UTC is a time standard. GMT (Greenwich Mean Time) is sometimes confused with UTC (Coordinated Universal Time). You can use any UNIX time converter to convert the UNIX time to either GMT or your local time. UNIX time appears as a series of numbers, for example 1518632124. This moment in time is sometimes referred to as epoch time. UNIX time is the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), 1 January 1970. If your data does not have timestamps, the time at which your data is indexed is used as the timestamp for your events. Regardless of how time is specified in your events, timestamps are converted to UNIX time and stored in the _time field when your data is indexed. ![]() If events don't contain timestamp information, Splunk software assigns a timestamp value to the events when data is indexed.
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