To view the calendar in your timezone, open the calendar and modify the ctz parameter to view the calendar in your local time zone. Options for time zone can be found in the TZ column of https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List.
The calendar published on lists.hyperledger.org is canonical. You should subscribe to that calendar.
Here are some time zones that you may find useful:
You can also download the calendar in iCal format.
Following is a calendar of community meetings. Times are GMT.