zdump - it is used to print the current time in each timezone named on the command line

To print the current time in the specified zone $ zdump india $ zdump Japan $ zdump Asia/Kolkata

To print verbose output $ zdump -v india

To print help options $ zdump --help

To print verbose time zone information for zones with verbose output stopping near the start of the year 2030 $ zdump -v -c 2030 japan $ zdump -v -c 2030 india

regards, T.Dhanasekar