other time conversion functions that depend on the timezone.
In a System-V-like environment it will also set the variables \fItimezone\fP
(seconds West of GMT) and \fIdaylight\fP (0 if this timezone does not
-have any daylight saving time rules, non-zero if there is a time during
+have any daylight saving time rules, nonzero if there is a time during
the year when daylight saving time applies).
.PP
If the