How to insert dynamic value in Headers in Postman?

Question

RESTful API

There is the following request:
http://localhost/rest/api/thing1
It has Headers:

Content-Type:application/json
Machine-Id:ABCD1234
My-Client-Time:{"dateTime":"2019-06-13T17:30:20.40+03:00"}
Authorization:Basic QWERTYYIOPASDFGHJKZXCVMNB1234
My-Machine-Id:ABCD1234

How in

My-Client-Time:{"dateTime":"2019-06-13T17:30:20.40+03:00"}

instead of time to transmit the current in this form?

Answer 1

postman.setGlobalVariable('timestampUtcIso8601', (new Date()).toISOString());

https://learning.getpostman.com/docs/postman/script...