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,]highyear
Cut off the 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.