I looked back at their news releases from the past 3 years regarding corporate update conference call and webcast announcments and found 4 examples. I see they've given 4 days notice on one webcast, 5 days notice on two webcasts, and 7 days notice on one webcast.

First week of March could be Tuesday 3/1 to Friday 3/4 next week or Monday 3/7 of the following week and they could still stick to their 4-7 day notice and news release in the next coming days to meet that first week of March timeline. However, the first week of March was only an estimate not a guarantee.

BearDownAZ