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zdump(8) [freebsd man page]

ZDUMP(8)						    BSD System Manager's Manual 						  ZDUMP(8)

NAME
zdump -- timezone dumper SYNOPSIS
zdump [--version] [-v] [-c [loyear,]hiyear] [zonename ...] DESCRIPTION
The zdump utility prints the current time in each zonename named on the command line. The following 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 high- est 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
ctime(3), tzfile(5), zic(8) BSD
June 20, 2004 BSD

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zdump(1M)						  System Administration Commands						 zdump(1M)

NAME
zdump - time zone dumper SYNOPSIS
zdump [--version] [-v] [-c [loyear,]hiyear] [zonename]... DESCRIPTION
The zdump command prints the current time for each time zone (zonename) listed on the command line. Specify zonename as the name of the time zone database file relative to /usr/share/lib/zoneinfo. Specifying an invalid time zone (zonename) to zdump does not return an error, rather zdump uses GMTO. This is consistent with the behavior of the library calls; zdump reflects the same behavior of the time routines in libc. See ctime(3C) and mktime(3C). OPTIONS
The following options are supported: --version Outputs version information and exits. -v Displays the entire contents of the time zone database file for zonename. Prints 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 time at which the rules for computing local time change; the time at the highest possible time value; and the time at one day less than the highest possible time value. See mktime(3C) and ctime(3C) for information regarding time value (time_t). Each line of output ends with isdst=1 if the given time is Daylight Saving Time, or isdst=0 otherwise. -c [loyear],hiyear Cuts off the verbose output near the start of the given year(s) . By default, the program cuts off verbose output near the start of the years -500 and 2500. EXIT STATUS
The following exit values are returned: 0 Successful completion. 1 An error occurred. FILES
/usr/share/lib/zoneinfo Standard zone information directory ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ SEE ALSO
zic(1M), ctime(3C), mktime(3C), attributes(5), environ(5) SunOS 5.11 3 Jan 2006 zdump(1M)
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