As listed in the Master Workbook, there are functions grouped into categories. This video is a demonstration of the Experience Level 1 Date & Time functions.
The functions covered in this video lesson are:
DATE — DATEVALUE – TODAY – DAY – MONTH – YEAR
TIME — TIMEVALUE – NOW — HOUR — MINUTE — SECOND
CORRECTION: I mention in the video that Excel views dates as the number of days since January 1, 1900 but it is actually January 0, 1900 (a bit confusing since January 0 doesn’t make intuitive sense).
Now that you’re an Excel ninja when it comes to Date & Time functions, try mastering Text Functions (e.g. LEN, CONCATENATE)