Time functions

addtodate — Modify date number by field.
calendar — Calendar.
clock — Return the current local date and time as a date vector.
cputime — Return the CPU time used by your Nelon session.
date — Return the Current date as character vector.
datenum — Return the date/time input as a serial day number.
datevec — Convert a serial date number into a date vector.
eomday — Returns last day of month.
etime — Time elapsed between date vectors.
leapyear — Determine leap year.
now — Returns current date under the form of a Unix hour.
sleep — Suspend code execution.
tic — Starts a stopwatch timer.
time — Return the current time as the number of seconds or nanoseconds since the epoch.
timeit — Measure time required to run function.
toc — Read the stopwatch timer.
weekday — Return the day of week.