class GeoEDF.connector.filter.DateTimeFilter

This filter is used to construct DateTime strings in a specific format for a given time period (or single date-time) and frequency

pattern(str, required)

This is the requested pattern for the returned DateTime values. Any valid Python DateTime format string can be provided.

start(str, required)

This is the start date entered in the standard MM/DD/YY or MM/DD/YY h:m:s formats. Whenever time is entered, the has_time attribute also needs to be set.

has_time(bool, conditional)

This attribute is optional unless the time has also been provided along with the date.

end(str, optional)

This is the end date for which filter outputs need to be generated. It needs to be entered in the same format as the start date.

period(str, conditional)

This is the frequency to apply when determining all intervening datetimes between the start and end date. The filter returns datetime strings encoded as pattern for each of these intervening datetimes. The period needs to follow the Pandas datetime frequency aliases. For example, 2M is a period of 2 months, Y is a yearly period.


  1. This filter has several attributes that are conditionally required. When an end date is provided, the period also needs to be provided. If the start date includes a time component, the has_time attribute needs to be set.
  2. If only a start date is provided, the filter simply returns a single value, formatting the start date with the provided pattern.
  3. If the start date includes a time component and an end date is provided, it too needs to include a time component.