Saw your post in the main chat room about a support call. All support calls are announced on the HOME page. They list the host, often include the topic and appear with a countdown timer so everyone can know what day and time they start in their own time zone.
The Saturday support calls have been less frequent in 2012. The Sunday support calls, the SMaRT calls, are always Sunday and always 9 pm GMT, London time.
Today's SMaRT call will of course be 9 pm GMT. Today, that will be 5 pm NY time and if you're in the Central Time Zone, that will be 4 pm Elkhart time. Be careful though: next week the UK goes on Daylight Saving Time too, so it will be 3 pm Central Time.
Remember, always look on the HOME page to see the upcoming events and calls and to see what day and time they occur where you live.