From the developer: "TrayDay - date, calendar and counter utility for the Windows tray, or Notification area in Windows XP. Includes week number features. TrayDay places an icon showing the date (day of the month) in the system tray. The icon resembles a page of a 'tear-off' calendar. You can therefore see the date at a glance - often quicker and easier than resting your mouse over the clock, searching for an 'Insert Date' menu, or having to reach for your diary. Move the mouse over the icon and the day of the week will appear; you can also have the Julian Day number, and the 'Internet Time as defined by Swatch, in the Tooltip. Left-click the icon and a pop-up menu appears showing the date in various formats - including up to ten user defined formats. Click one and it will automatically be inserted into your application. You can select your favorite date format to be available by double-clicking the TrayDay icon. The user formats can include the date, time, and counters - particularly useful for date-stamping messages or files; and calendar week/day number dates - eg, 2002-W14-1 for April 1, 2002. TrayDay also has a calendar option; you can choose to have the monthly calendar 'on top' all the time for quick reference. Now with week number display, to ISO (or your own) standard. Navigate months and years using the mouse or keyboard - or the Microsoft IntelliMouse wheel - and type or paste any date in the format of your choice. The calendar shows Monday as first day of the week, but this can be changed to Sunday in the Settings dialog. You can choose to have Saturdays or Sundays (or both) displayed in red on the calendar."