Rounds a DateTime value’s day, hour, minute, or second to a specified interval.

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Typical Uses

  • Generalizing DateTime values

How does it work?

DateTimeRounder can be used to round the date or time to a specific interval.

For example, you can have the time rounded to 5 minute intervals to keep all events in that timeframe grouped together.

DateTimeRounder can also be used to remove fractional seconds by rounding down to an interval of 1 second.

The input can be a DateTime in either the FME or ISO format. Output is in Standard FME Date/Time Format.


Input Ports

Output Ports


Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.


Processing Behavior


Feature Holding


Dependencies None



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