Date field of node return as pattern yyyy-MM-dd'T'HH:mm:ss.SZ
But we have to request pattern in query param: yyyy-MM-dd'T'HH:mm:ss.SSSXXX

They are inconsistent so incase user cannot reuse return result in nested query param

(Update 2018/02/01)
This is actually a bug when introducing NodeWriter. The responded date time is not formatted correctly and a colon is missing in timezone offset. Copying that value into request parameter eventually doesn't work.
=> Fixing datetime in response is needed.