DATE Returns the serial number of a particular date
DATEVALUE Converts a date in the form of text to a serial number
DAY Converts a serial number to a day of the month
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
HOUR Converts a serial number to an hour
MINUTE Converts a serial number to a minute
MONTH Converts a serial number to a month
NETWORKDAYS Returns the number of whole workdays between two dates
NOW Returns the serial number of the current date and time
SECOND Converts a serial number to a second
TIME Returns the serial number of a particular time
TIMEVALUE Converts a time in the form of text to a serial number
TODAY Returns the serial number of today's date
WEEKDAY Converts a serial number to a day of the week
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
YEAR Converts a serial number to a year
YEARFRAC Returns the year fraction representing the number of whole days between start_date and end_date