MyTimeZone is one of the simplest tools conversionof time you can use, and it comes as an extension of it Chrome.
You may not need it until you meet one at a time streaming you want to watch and you need to convert the time.
https://www.youtube.com/watch?v=cOzIdawcdfw
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 come across. It supports all time zones (GMT, UTC, etc.) as well as automatically influencing factors such as summer time.
You can download the extension from the link below