This is an excerpt from Pierre Leclerc (www.excel-vba.com)

Excel functions and formulas

 

The 2 Most Important

Excel Functions AND
Formulas

 

SUMPRODUCT

AND

INDEX/MATCH

 

 

Annex 2: Excel Spreadsheets  Date and Time Functions (21)

Note: The DATEDIF function does not show in the drop-down list of Excel functions (even in Excel 2007).

There are 21 functions in the "Date and Time" category.

Functions What it Does
DATE Returns the serial number of a particular date

DATEDIF

Calculates the interval in days, months or years between two dates

DAY Converts a serial number to a day of the month
HOUR Converts a serial number to an hour
MINUTE Converts a serial number to a minute
MONTH Converts a serial number to a month
SECOND Converts a serial number to a second
TIME Returns the serial number of a particular time
TODAY Returns the serial number of today's date
YEAR Converts a serial number to a year
NOW Returns the serial number of the current date and time
WEEKDAY Converts a serial number to a day of the week
DATEVALUE  Converts a date in the form of text to a serial number
DAYS360 Calculates the number of days between two dates based on a 360-day year
EDATE Returns the serial number of the date that is the indicated number of months before or after the start date
EOMONTH Returns the serial number of the last day of the month before or after a specified number of months
NETWORKDAYS Returns the number of whole workdays between two dates
TIMEVALUE Converts a time in the form of text to a serial number
WEEKNUM      Converts a serial number to a number representing where the week falls numerically with a year
WORKDAY Returns the serial number of the date before or after a specified number of workdays
YEARFRAC Returns the year fraction representing the number of whole days between start_date and end_date

 

 

SUMPRODUCT  ¦  INDEX/MATCH  ¦  SUBTOTAL  ¦  ISERROR  ¦  HLOOKUP  ¦  LOOKUP  ¦  VLOOKUP
AVERAGEIF  ¦  AVERAGEIFS ¦  COUNTIF  ¦  COUNTIFS  ¦  SUMIF  ¦  SUMIFS  ¦  IFERROR

 

 

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