topic GeoEvent Processor - Help with Field Calculator Date Expressions in ArcGIS GeoEvent Server Questions https://community.esri.com/t5/arcgis-geoevent-server-questions/geoevent-processor-help-with-field-calculator-date/m-p/729411#M3153 <HTML><HEAD></HEAD><BODY><P>I was wondering with GeoEvent Field Calculator, if you can do some calculation I am currently doing using the field calculator in ArcMap 10.3.1 as features are added or updated.</P><P></P><P>1) Duration Time- I am trying to find the difference (number of Days) of two dates and copy to existing field</P><P><STRONG>ArcMap Field Calculator expression-</STRONG>&nbsp; (arcpy.time.ParseDateTimeString(Field1)-arcpy.time.ParseDateTimeString(Field2)).days</P><P></P><P>2) Expiration Date- I am trying to find expiration date based on the features start date and copy to existing field</P><P><STRONG>ArcMap Field Calculator expression- </STRONG>arcpy.time.ParseDateTimeString(Field1) + datetime.timedelta(days=120)</P><P></P><P>3) Year- Extracting Year from start date and copy to existing field</P><P><STRONG>ArcMap Field Calculator expression- </STRONG>(arcpy.time.ParseDateTimeString(field1)).year</P><P></P><P>I am not sure if this is posssible but any help will be much appreciated.</P></BODY></HTML> Sat, 05 Mar 2016 14:08:38 GMT Real_EstateDepartment 2016-03-05T14:08:38Z GeoEvent Processor - Help with Field Calculator Date Expressions https://community.esri.com/t5/arcgis-geoevent-server-questions/geoevent-processor-help-with-field-calculator-date/m-p/729411#M3153 <HTML><HEAD></HEAD><BODY><P>I was wondering with GeoEvent Field Calculator, if you can do some calculation I am currently doing using the field calculator in ArcMap 10.3.1 as features are added or updated.</P><P></P><P>1) Duration Time- I am trying to find the difference (number of Days) of two dates and copy to existing field</P><P><STRONG>ArcMap Field Calculator expression-</STRONG>&nbsp; (arcpy.time.ParseDateTimeString(Field1)-arcpy.time.ParseDateTimeString(Field2)).days</P><P></P><P>2) Expiration Date- I am trying to find expiration date based on the features start date and copy to existing field</P><P><STRONG>ArcMap Field Calculator expression- </STRONG>arcpy.time.ParseDateTimeString(Field1) + datetime.timedelta(days=120)</P><P></P><P>3) Year- Extracting Year from start date and copy to existing field</P><P><STRONG>ArcMap Field Calculator expression- </STRONG>(arcpy.time.ParseDateTimeString(field1)).year</P><P></P><P>I am not sure if this is posssible but any help will be much appreciated.</P></BODY></HTML> Sat, 05 Mar 2016 14:08:38 GMT https://community.esri.com/t5/arcgis-geoevent-server-questions/geoevent-processor-help-with-field-calculator-date/m-p/729411#M3153 Real_EstateDepartment 2016-03-05T14:08:38Z