Are you bad at remembering dates? Do you have to constantly open the Calendar app just to figure out what date/day it is? How about adding the date to the menu bar so one glance is all that's needed to know the date?
By default, the menu bar on Mac OS X doesn't show the date. It shows only the time. The date and day will be shown right next to the time display on Mac's menu bar.
Here's How to Add Date to the Menu Bar in Mac OS X:
Step 1: Click on the “Apple Menu.”
Step 2: Select “System Preferences” (You can also right click on the time shown at upper right of your Mac desktop, followed by selecting “Date & Time” option available.)
Step 3: Choose the “Date & Time” option.
Step 4: Click on the “Clock” tab.
Step 5: There should be two check boxes available next to Date Options. Check the box having label “Show Date.”
Step 6: That's it. The menu bar time display will now show the date too. If you selected Show day of the week, you won't have to open the calendar to figure out what day it is.
Mac users who are using older versions of OS X should follow the following process. Launch System Preferences > International panel > Formats > Customize and arrange the date format as you wish to see on the menu bar. This can be a little complicated because you will have to manually edit and add the handles for the time and date values.