This month begins with the last week of last month.

Outlook does not offer a setting to display only the week containing "Today" and the next 4 weeks.

This screenshot shows May 2005. Because the weekends are compressed, the calendar begins the week on Monday while Saturday and Sunday share the last square. Since the first day of the month is in the last square of the top row, the calendar starts at the end of the previous month.

 

When the compressed weekends option is enabled and the month covers 6 weekly grids, you won't see any days that extend past the fifth Sunday and Outlook selects the first day of last month as "Today". This is because Outlook only displays 5 weeks at a time and any month that begins on a Saturday or Sunday and ends on a Monday or Tuesday is stretched into 6 weeks when you use compressed weekends.

With the checkmark removed from the compressed weekend option, the calendar begins on Sunday May 1 and the entire month properly fits within Outlook's 5 week viewing area.

Because Outlook displays the full week that contains the first day of the month, disabling Compressed Weekends will correct the view problem. To disable it, right click on the calendar and choose Other Settings. Remove the check from Compress Weekend days.

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