title: Get utc offset value from a local timestamp string in nodejs/javascript
body: <p>My local timestamp value is a string in the below format:
  '2020-05-19T15:45:07.2306062+05:30'</p>
  
  <p>How can i get a UTC offset value from this format of date string using nodejs/javascript? </p>
  
  <p>Please help. Thanks in advance</p>