Returns: (time) Serial number of the current date and
time based on the system clock
Description: The serial number used by all date and
time primitives is the number of seconds that have elapsed
between an arbitrary base date and the specified date and time.
Dates before the year 1584 are not valid.
The serial numbers returned by the datenum and now primitives
include the time unit of measure. Use formulas including the
units years, months, days, hours, minutes,
and sec to modify date serial numbers.
Examples: weekday(now) = current
day of the week
date(0,now+2hours+5minutes) = the
date and time 2 hours and 5 minutes from now
See Also: datenum,
date, time, year, month, day, hour,
minute, second, weekday