Date and Time Primitives

To serial number

Primitive	Description
datenum	Serial number of a specific date and time
now	Serial number of the current date and time

From serial number

Primitive	Description
date	Text presentation of a date derived from a date-time serial number
time	Text presentation of a time derived from a date-time serial number
datetime	Text presentation of a date and time derived from a serial number
year	Year derived from a date-time serial number
month	Month derived from a date-time serial number
day	Day of the month derived from a date-time serial number
hour	Hour derived from a date-time serial number
minute	Minute derived from a date-time serial number
second	Second derived from a date-time serial number
weekday	Day of the week derived from a date-time serial number