TWebDBDateTimePicker Get and Set seconds since epoch format

WEB TMS WEB Core
1

The REST Server sends and receives Date and DateTime values in seconds since epoch (Jan 1, 1970) integer format.

How to use with the TWebDBDateTimePicker control?

2

I would suggest to create a calculated field of the type ftDateTime and write the code to convert the epoch time to TDateTime and vice versa and bind this calculated field to the TWebDBDateTimePicker.