#Solution for
1.Find out the number of days between two datetime parameters.
Usage php artisan datetime:days datetime1 datetime2
datetime1 and datetime2 should be of the format dd-mm-yyyy-hh-mm-ss
There is no space between yyyy and hh in the format. Introducing a space between them will split date and time into two different parameters
Usage example
php artisan datetime:days 01-01-2016-10-30-00 15-01-2016-11-00-00
2.Find out the number of weekdays between two datetime parameters. Usage php artisan datetime:weekdays datetime1 datetime2
datetime1 and datetime2 should be of the format dd-mm-yyyy-hh-mm-ss
Usage example
php artisan datetime:weekdays 01-01-2016-10-30-00 15-01-2016-11-00-00
3.Find out the number of complete weeks between two datetime parameters. Usage php artisan datetime:weeks datetime1 datetime2
datetime1 and datetime2 should be of the format dd-mm-yyyy-hh-mm-ss
Usage example
php artisan datetime:weeks 01-01-2016-10-30-00 15-01-2016-11-00-00
4.Accept a third parameter to convert the result of (1, 2 or 3) into one of seconds, minutes, hours, years. For all the above 3 commands adding an optional parameter --output=x will convert the result into the value required. Options for x are s convert the result in seconds i convert the result in minutes h convert the result in hours y convert the result in years
Usage example
php artisan datetime:days datetime1 datetime2 --output=s
php artisan datetime:weekdays datetime1 datetime2 --output=i
php artisan datetime:weeks datetime1 datetime2 --output=h
php artisan datetime:weeks datetime1 datetime2 --output=y
5.Allow the specification of a timezone for comparison of input parameters from different timezones.
Usage php artisan datetime:tz datetime1 datetime2 timezone1 timezone2
datetime1 and datetime2 should be of the format dd-mm-yyyy-hh-mm-ss timezone1 and timezone2 can be any standard time-zone string. Please refer to http://php.net/manual/en/timezones.php for list of valid time-zone strings
timezone1 is for datetime1 and timezone2 is for datetime2
Usage example
php artisan datetime:tz 01-01-2016-00-00-00 01-01-2016-00-00-00 Australia/Adelaide Australia/Melbourne
php artisan datetime:tz 01-01-2016-00-00-00 01-01-2016-12-30-30 Australia/Adelaide Australia/Melbourne
6.Check for DST time difference in hours for a specific timezone.
Usage php artisan datetime:dst datetime1 datetime2 timezone
datetime1 and datetime2 should be of the format dd-mm-yyyy-hh-mm-ss timezone can be any standard time-zone string. Please refer to http://php.net/manual/en/timezones.php for list of valid time-zone strings
Usage example
php artisan datetime:dst 01-04-2016-00-00-00 04-04-2016-00-00-00 Australia/Melbourne
php artisan datetime:dst 01-03-2016-00-00-00 04-03-2016-00-00-00 Australia/Melbourne
In the above examples, first command will return 73 hours and the second command will return 72 hours
Validate test cases by running phpunit from the command prompt