When you include a date value that includes time zone-specific formatting in a REST API query, a non-200 response code is seen.
For example: 0000-00-00T01:02:03+09:00 specifies a local time zone format. The REST API does not accept this type of input.
If you enable trace, you might see the following trace statements if an invalid date format is supplied in the request:
[3/6/13 17:04:37:650 EST] 000000f5 DateUtils 1 Invalid value in time
[3/6/13 17:04:37:885 EST] 000000f5 DateUtils 1 Error converting twClass value to date: com.ibm.bpm.wle.api.InvalidDateException: CWTBG0546E: Invalid date received '0000-00-00T01:02:03 09:00', date has to be in ISO-8601 format 'yyyy-MM-dd'T'HH:mm:ssz'
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