Hello Mike,
Please check as below.
1. Use Edm.DateTimeOffset with 0's for the Precision, Scale and Max Length and Null-able is checked.
2. In ABAP Type editor maintain as below.
3. Generate run-time objects and clear /IWFND/CACHE_CLEANUP & /IWBEP/CACHE_CLEANUP
4. Send Date as below in milliseconds in the JSON payload
{
...
"MyDate":"/Date(1467164260445)/",
...
}
Where
Wed Jun 29 2016 07:07:40 GMT+0530 (Asia/Kolkata)
equals
1467164260445 milliseconds
Regards,
Ashwin