MyTimeZone is one of the simplest time conversion tools you can use, and comes as an extension of Chrome.
Maybe you do not need it until you meet some time from a streaming you want to watch and you have to turn the time.
As you can see in the introductory video above, the extension helps you convert any time zone to your local time or to any other.
All you have to do is to mark the original time zone, and then right-click. Conversion occurs automatically.
MyTimeZone is one of the most effortless converters I've ever met. Supports all time zones (GMT, UTC, etc.) and factors that automatically affect such as Daylight Saving Time.
You can download the extension from the link below