43 lines
1.4 KiB
Text
43 lines
1.4 KiB
Text
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)
|