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NAME
zdump - time zone dumper
SYNOPSIS
zdump [ --version ] [ -v ] [ -c [loyear,]hiyear ] [ zonename
... ]
DESCRIPTION
Zdump prints the current time in each zonename named on the
command line.
These options are available:
--version
Output version information and exit.
-v For each zonename on the command line, print the time
at the lowest possible time value, the time one day
after the lowest possible time value, the times both
one second before and exactly at each detected time
discontinuity, the time at one day less than the
highest possible time value, and the time at the
highest possible time value, Each line ends with
isdst=1 if the given time is Daylight Saving Time or
isdst=0 otherwise.
-c [loyear,]hiyear
Cut off verbose output near the start of the given
year(s). By default, the program cuts off verbose
output near the starts of the years -500 and 2500.
LIMITATIONS
The -v option may not be used on systems with floating-point
time_t values that are neither float nor double.
Time discontinuities are found by sampling the results
returned by localtime at twelve-hour intervals. This works
in all real-world cases; one can construct artificial time
zones for which this fails.
SEE ALSO
newctime(3), tzfile(5), zic(8)
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