Added Code for Time Zone Conversion

[PriyankaHotchandani]

Pull Request Template

script name - time_zone.py

This is a python script that converts a time from one time zone to another. The possible time zones considered are Eastern, Central, Mountain, or Pacific.

Issue no.(must) - #731

Self Check(Tick After Making pull Request)

• This issue was assigned to me.
• One Change in one Pull Request
• My file is in proper folder (Name of folder should be in lowercase with no space in between) (E.g. meet_schedular)
• I am following clean code and Documentation and my code is well linted with flake8.
• I have added README.md and requirements.txt (Include version numbers too e.g. pandas==0.0.1) with my script
• I have used REPO README TEAMPLATE (Necessary)

If issue was not assigned to you Please don't make a PR. It will marked as invalid.

[github-actions]

Congratulations!! 🎉 @PriyankaHotchandani for making your first PR. We will review the changes soon and merge finally.😊 Do give a star ⭐ meanwhile if you like this project.