This is a library that help solving conversion problem from local date to UTC and vice versa. It is usefull in case of an Azure project.
A good way to know the name of your timezone is:
var tz = TimeZone.CurrentTimeZone.StandardName;
This code was presented here:
https://amethyste16.wordpress.com/2013/05/24/la-question-des-fuseaux-horaires/