If data that your app is processing contains date/time values as epoch values (10-digit seconds elapsed since January 1, 1970) then it is easy to convert that to milliseconds:
...Inbound","sch_arr_dt":"1443402660","sch_dep_dt":"1443402660","pre_dt":"1443403140","...
All that is needed is to multiply the value by 1000 to convert it to milliseconds, then use the MakeInstantFromMillis procedure with result:
Here is an example:

Once the value is an instant, the Clock component blocks can use that value.
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