difftime

Format: difftime (t1,t2)

Purpose: Computes the difference between two calender times t1 and t2.

Return Values: Returns a real denoting the difference t1-t2 expressed in seconds.

Example:

input:	resulting output:
< // Compute the difference between UTC and local time let x=caltime(); t1=mktime(gmtime(x)); t2=mktime(localtime(x)); ? difftime(t1,t2) >	-3600.000000

See Also: caltime(), gmtime(), localtime(), mktime(), strftime(), strptime().